diff --git a/backend/app/main.py b/backend/app/main.py
index a8f6be6..f0d0276 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -14,6 +14,7 @@ from .routers import (
     dashboard,
     field_definitions,
     groups,
+    items,
     locations,
     maintenance,
     package_types,
@@ -81,6 +82,9 @@ def _ensure_schema() -> None:
         "ALTER TABLE movements ADD COLUMN IF NOT EXISTS location_id INTEGER "
         "REFERENCES locations(id) ON DELETE SET NULL",
         "ALTER TABLE movements ADD COLUMN IF NOT EXISTS reason VARCHAR(16)",
+        # Einzelstück-Verwaltung (Items mit UID/QR) je Produkt.
+        "ALTER TABLE products ADD COLUMN IF NOT EXISTS individual BOOLEAN "
+        "NOT NULL DEFAULT FALSE",
     ]
     with engine.begin() as conn:
         for stmt in stmts:
@@ -154,3 +158,4 @@ app.include_router(maintenance.router)
 app.include_router(dashboard.router)
 app.include_router(shops.router)
 app.include_router(field_definitions.router)
+app.include_router(items.router)
diff --git a/backend/app/models.py b/backend/app/models.py
index 8d582ef..a470c5e 100644
--- a/backend/app/models.py
+++ b/backend/app/models.py
@@ -229,6 +229,10 @@ class Product(Base):
         ForeignKey("shops.id", ondelete="SET NULL"), nullable=True
     )
     product_url: Mapped[str | None] = mapped_column(String(1024), nullable=True)
+    # Gegenstände: als Einzelstücke (Items mit eigener UID/QR) statt als Menge je
+    # Lagerort verwalten. So bekommt jedes physische Stück ein eigenes Kaufdatum,
+    # eine eigene Garantie und Bezugsquelle (z.B. dieselbe Powerbank 2024 + 2025).
+    individual: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
 
     created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
 
@@ -498,3 +502,36 @@ class ProductFieldValue(Base):
 
     product: Mapped[Product] = relationship(back_populates="field_values")
     field_definition: Mapped[FieldDefinition] = relationship()
+
+
+class Item(Base):
+    """Ein physisches Einzelstück eines Gegenstands (Instanz) mit eigener UID/QR.
+
+    Nur für Gegenstands-Produkte mit Einzelstück-Verwaltung (``Product.individual``).
+    Je Stück ein eigener Lagerort, Kaufdatum, Garantie, Bezugsquelle und Notiz –
+    so lässt sich dasselbe Modell mehrfach getrennt führen (Powerbank 2024 + 2025).
+    Der QR-Code trägt die UID; ein Scan öffnet genau dieses Stück.
+    """
+
+    __tablename__ = "items"
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True)
+    # Kurzer, gut lesbarer Code für den QR (ohne verwechselbare Zeichen).
+    uid: Mapped[str] = mapped_column(String(16), unique=True, index=True, nullable=False)
+    product_id: Mapped[int] = mapped_column(
+        ForeignKey("products.id", ondelete="CASCADE"), nullable=False
+    )
+    location_id: Mapped[int | None] = mapped_column(
+        ForeignKey("locations.id", ondelete="SET NULL"), nullable=True
+    )
+    shop_id: Mapped[int | None] = mapped_column(
+        ForeignKey("shops.id", ondelete="SET NULL"), nullable=True
+    )
+    acquired_on: Mapped[date | None] = mapped_column(Date, nullable=True)      # gekauft am
+    warranty_until: Mapped[date | None] = mapped_column(Date, nullable=True)   # Garantie bis
+    note: Mapped[str | None] = mapped_column(String(255), nullable=True)       # Notiz/Zustand
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_now)
+
+    product: Mapped[Product] = relationship()
+    location: Mapped[Location | None] = relationship()
+    shop: Mapped[Shop | None] = relationship()
diff --git a/backend/app/routers/items.py b/backend/app/routers/items.py
new file mode 100644
index 0000000..c6634a0
--- /dev/null
+++ b/backend/app/routers/items.py
@@ -0,0 +1,158 @@
+"""Einzelstücke (Items) eines Gegenstands: anlegen, ändern, entfernen, per UID finden.
+
+Ein Item ist ein physisches Exemplar mit eigener UID/QR und eigenen Angaben
+(Lagerort, Kaufdatum, Garantie, Bezugsquelle, Notiz). Nur sinnvoll für
+Gegenstands-Produkte mit ``Product.individual``.
+"""
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from sqlalchemy.orm import Session
+
+from ..database import get_db
+from ..deps import get_current_user, require_admin
+from ..models import Item, Location, Movement, MovementType, Product, Shop, User
+from ..schemas import ItemCreate, ItemOut, ItemRemove, ItemUpdate
+from ..services.items import generate_uid, item_to_out
+
+router = APIRouter(tags=["items"])
+
+
+def _product_or_404(db: Session, product_id: int) -> Product:
+    product = db.get(Product, product_id)
+    if product is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "Produkt nicht gefunden")
+    return product
+
+
+def _item_or_404(db: Session, item_id: int) -> Item:
+    item = db.get(Item, item_id)
+    if item is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "Einzelstück nicht gefunden")
+    return item
+
+
+def _check_refs(db: Session, shop_id: int | None, location_id: int | None) -> None:
+    if shop_id is not None and db.get(Shop, shop_id) is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "Shop nicht gefunden")
+    if location_id is not None and db.get(Location, location_id) is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "Lagerort nicht gefunden")
+
+
+@router.get("/products/{product_id}/items", response_model=list[ItemOut])
+def list_items(
+    product_id: int,
+    db: Session = Depends(get_db),
+    _: User = Depends(get_current_user),
+) -> list[ItemOut]:
+    _product_or_404(db, product_id)
+    rows = db.query(Item).filter(Item.product_id == product_id).order_by(Item.id).all()
+    return [item_to_out(i) for i in rows]
+
+
+@router.post(
+    "/products/{product_id}/items", response_model=list[ItemOut],
+    status_code=status.HTTP_201_CREATED,
+)
+def create_items(
+    product_id: int,
+    payload: ItemCreate,
+    db: Session = Depends(get_db),
+    _: User = Depends(require_admin),
+) -> list[ItemOut]:
+    """Ein oder mehrere (count) Einzelstücke mit gemeinsamen Startwerten anlegen."""
+    product = _product_or_404(db, product_id)
+    _check_refs(db, payload.shop_id, payload.location_id)
+    created: list[Item] = []
+    for _ in range(payload.count):
+        item = Item(
+            uid=generate_uid(db),
+            product_id=product.id,
+            location_id=payload.location_id,
+            shop_id=payload.shop_id,
+            acquired_on=payload.acquired_on,
+            warranty_until=payload.warranty_until,
+            note=payload.note,
+        )
+        db.add(item)
+        db.flush()
+        created.append(item)
+    db.commit()
+    for item in created:
+        db.refresh(item)
+    return [item_to_out(i) for i in created]
+
+
+@router.get("/items/by-uid/{uid}", response_model=ItemOut)
+def item_by_uid(
+    uid: str,
+    db: Session = Depends(get_db),
+    _: User = Depends(get_current_user),
+) -> ItemOut:
+    """QR-Auflösung: UID → Einzelstück (mit Produktangaben)."""
+    item = db.query(Item).filter(Item.uid == uid.strip().upper()).first()
+    if item is None:
+        raise HTTPException(status.HTTP_404_NOT_FOUND, "Kein Einzelstück mit dieser UID")
+    return item_to_out(item)
+
+
+@router.get("/items/{item_id}", response_model=ItemOut)
+def get_item(
+    item_id: int,
+    db: Session = Depends(get_db),
+    _: User = Depends(get_current_user),
+) -> ItemOut:
+    return item_to_out(_item_or_404(db, item_id))
+
+
+@router.patch("/items/{item_id}", response_model=ItemOut)
+def update_item(
+    item_id: int,
+    payload: ItemUpdate,
+    db: Session = Depends(get_db),
+    _: User = Depends(require_admin),
+) -> ItemOut:
+    item = _item_or_404(db, item_id)
+    data = payload.model_dump(exclude_unset=True)
+    _check_refs(db, data.get("shop_id"), data.get("location_id"))
+    for field, value in data.items():
+        setattr(item, field, value)
+    db.commit()
+    db.refresh(item)
+    return item_to_out(item)
+
+
+@router.post("/items/{item_id}/remove", status_code=status.HTTP_204_NO_CONTENT)
+def remove_item(
+    item_id: int,
+    payload: ItemRemove,
+    db: Session = Depends(get_db),
+    user: User = Depends(require_admin),
+) -> None:
+    """Einzelstück mit Grund entfernen – als Bewegung protokolliert (Statistik je Modell)."""
+    item = _item_or_404(db, item_id)
+    db.add(
+        Movement(
+            product_id=item.product_id,
+            lot_id=None,
+            user_id=user.id,
+            type=MovementType.out,
+            quantity=1,
+            unit_used="Stück",
+            note=(payload.note or f"Einzelstück {item.uid}"),
+            location_id=item.location_id,
+            reason=payload.reason.value,
+        )
+    )
+    db.delete(item)
+    db.commit()
+
+
+@router.delete("/items/{item_id}", status_code=status.HTTP_204_NO_CONTENT)
+def delete_item(
+    item_id: int,
+    db: Session = Depends(get_db),
+    _: User = Depends(require_admin),
+) -> None:
+    """Einzelstück ohne Grund löschen (Korrektur)."""
+    db.delete(_item_or_404(db, item_id))
+    db.commit()
diff --git a/backend/app/routers/products.py b/backend/app/routers/products.py
index 5f0a913..ab9b738 100644
--- a/backend/app/routers/products.py
+++ b/backend/app/routers/products.py
@@ -335,6 +335,7 @@ def create_product(
         min_stock_in_packages=bool(payload.min_stock_in_packages),
         shop_id=payload.shop_id,
         product_url=payload.product_url or None,
+        individual=bool(payload.individual),
         source="manual",
     )
     db.add(product)
diff --git a/backend/app/schemas.py b/backend/app/schemas.py
index 61cd1e3..4b8885b 100644
--- a/backend/app/schemas.py
+++ b/backend/app/schemas.py
@@ -281,6 +281,8 @@ class ProductBase(BaseModel):
     # Nur für Gegenstände: Bezugsquelle und Onlineshop-Link.
     shop_id: int | None = None
     product_url: str | None = Field(default=None, max_length=1024)
+    # Gegenstände als Einzelstücke (Items mit UID/QR) statt als Menge führen.
+    individual: bool = False
     # Selbst definierte Feldwerte: {field_definition_id: Wert-als-Text}.
     field_values: dict[int, str | None] | None = None
 
@@ -306,6 +308,7 @@ class ProductUpdate(BaseModel):
     min_stock_in_packages: bool | None = None
     shop_id: int | None = None
     product_url: str | None = Field(default=None, max_length=1024)
+    individual: bool | None = None
     field_values: dict[int, str | None] | None = None
 
 
@@ -330,6 +333,7 @@ class ProductOut(BaseModel):
     source: str
     shop_id: int | None = None
     product_url: str | None = None
+    individual: bool = False
     created_at: datetime
     # angereichert:
     stock: float = 0.0
@@ -498,6 +502,48 @@ class RemovalSummary(BaseModel):
     history: list[RemovalHistoryItem] = []
 
 
+# ---- Einzelstücke (Items mit UID/QR) ----
+class ItemCreate(BaseModel):
+    """Ein oder mehrere Einzelstücke mit gemeinsamen Startwerten anlegen."""
+    count: int = Field(default=1, ge=1, le=200)
+    location_id: int | None = None
+    shop_id: int | None = None
+    acquired_on: date | None = None
+    warranty_until: date | None = None
+    note: str | None = Field(default=None, max_length=255)
+
+
+class ItemUpdate(BaseModel):
+    location_id: int | None = None
+    shop_id: int | None = None
+    acquired_on: date | None = None
+    warranty_until: date | None = None
+    note: str | None = Field(default=None, max_length=255)
+
+
+class ItemRemove(BaseModel):
+    reason: RemovalReason
+    note: str | None = Field(default=None, max_length=255)
+
+
+class ItemOut(BaseModel):
+    model_config = ConfigDict(from_attributes=True)
+    id: int
+    uid: str
+    product_id: int
+    location_id: int | None = None
+    location_name: str | None = None
+    shop_id: int | None = None
+    shop_name: str | None = None
+    acquired_on: date | None = None
+    warranty_until: date | None = None
+    note: str | None = None
+    created_at: datetime
+    # Für QR-Auflösung/Anzeige mitgeliefert:
+    product_name: str | None = None
+    product_brand: str | None = None
+
+
 # ---- Views ----
 class ShoppingItem(BaseModel):
     product_id: int
diff --git a/backend/app/services/items.py b/backend/app/services/items.py
new file mode 100644
index 0000000..45e2f28
--- /dev/null
+++ b/backend/app/services/items.py
@@ -0,0 +1,31 @@
+"""Einzelstücke (Items): UID-Erzeugung und Anreicherung für die Ausgabe."""
+
+from __future__ import annotations
+
+import secrets
+
+from sqlalchemy.orm import Session
+
+from ..models import Item
+from ..schemas import ItemOut
+
+# Ohne 0/O/1/I/L, damit die UID auf einem Etikett eindeutig lesbar bleibt.
+_ALPHABET = "ABCDEFGHJKMNPQRSTUVWXYZ23456789"
+
+
+def generate_uid(db: Session, length: int = 8) -> str:
+    """Kurze, eindeutige UID erzeugen (bei Kollision neu würfeln)."""
+    while True:
+        code = "".join(secrets.choice(_ALPHABET) for _ in range(length))
+        if db.query(Item).filter(Item.uid == code).first() is None:
+            return code
+
+
+def item_to_out(item: Item) -> ItemOut:
+    """ItemOut inkl. Lagerort-/Shop-/Produktnamen für die Anzeige."""
+    out = ItemOut.model_validate(item)
+    out.location_name = item.location.name if item.location else None
+    out.shop_name = item.shop.name if item.shop else None
+    out.product_name = item.product.name if item.product else None
+    out.product_brand = item.product.brand if item.product else None
+    return out
diff --git a/backend/app/services/stock.py b/backend/app/services/stock.py
index 0db6bf9..9ebb632 100644
--- a/backend/app/services/stock.py
+++ b/backend/app/services/stock.py
@@ -7,7 +7,7 @@ from datetime import date
 from sqlalchemy import asc
 from sqlalchemy.orm import Session
 
-from ..models import DatePrecision, Lot, Movement, MovementType, Product, User
+from ..models import DatePrecision, Item, Lot, Movement, MovementType, Product, User
 from .conversion import to_base
 from .dates import clean_precision, normalize_best_before
 
@@ -192,7 +192,14 @@ def removal_stats(db: Session, product_id: int) -> dict[str, dict]:
 
 
 def current_stock(db: Session, product_id: int) -> float:
-    """Summe der Lot-Mengen eines Produkts (in Basiseinheiten)."""
+    """Bestand eines Produkts (in Basiseinheiten).
+
+    Einzelstück-Produkte zählen die Anzahl ihrer Items, alle anderen summieren
+    die Lot-Mengen.
+    """
+    product = db.get(Product, product_id)
+    if product is not None and product.individual:
+        return float(db.query(Item).filter(Item.product_id == product_id).count())
     total = (
         db.query(Lot).with_entities(Lot.quantity).filter(Lot.product_id == product_id).all()
     )
diff --git a/backend/tests/test_gegenstaende.py b/backend/tests/test_gegenstaende.py
index 07cfcb1..75f144b 100644
--- a/backend/tests/test_gegenstaende.py
+++ b/backend/tests/test_gegenstaende.py
@@ -14,6 +14,7 @@ from app.models import (
     Category,
     CategoryTracking,
     FieldDefinition,
+    Item,
     Location,
     Lot,
     Movement,
@@ -21,6 +22,7 @@ from app.models import (
     ProductFieldValue,
     RemovalReason,
 )
+from app.services.items import generate_uid
 from app.routers.categories import create_category
 from app.schemas import CategoryCreate
 from app.services.fields import (
@@ -236,3 +238,40 @@ def test_feldwert_setzen_und_leeren(db):
     apply_field_values(db, product, {fd.id: ""})
     db.commit()
     assert db.query(ProductFieldValue).filter_by(product_id=product.id).count() == 0
+
+
+# ---- Einzelstücke (Items mit UID/QR) ----
+
+def _individual_product(db, name="Powerbank"):
+    cat = Category(name="Elektronik", tracking=CategoryTracking.object.value)
+    db.add(cat)
+    db.flush()
+    product = Product(name=name, category_id=cat.id, individual=True)
+    db.add(product)
+    db.commit()
+    db.refresh(product)
+    return product
+
+
+def test_uid_ist_eindeutig(db):
+    codes = {generate_uid(db) for _ in range(50)}
+    assert len(codes) == 50
+    # Keine verwechselbaren Zeichen (0/O/1/I/L) in der UID.
+    assert all(ch not in "01OIL" for code in codes for ch in code)
+
+
+def test_einzelstueck_bestand_zaehlt_items(db):
+    product = _individual_product(db)
+    for _ in range(3):
+        db.add(Item(uid=generate_uid(db), product_id=product.id))
+    db.commit()
+    assert current_stock(db, product.id) == 3
+
+
+def test_mengen_produkt_zaehlt_weiter_lots(db):
+    # Ein Nicht-Einzelstück-Produkt zählt weiterhin über Lots, nicht über Items.
+    product, _ = _object_product(db, name="Unterhose")
+    a = _loc(db, "Schrank A")
+    object_add(db, product, 5, a.id, None)
+    db.commit()
+    assert current_stock(db, product.id) == 5