diff --git a/inventory/models/inventory.py b/inventory/models/inventory.py
index 885fb60..43ea25c 100644
--- a/inventory/models/inventory.py
+++ b/inventory/models/inventory.py
@@ -1,18 +1,54 @@
 from typing import Optional
 
-from sqlalchemy import DateTime, ForeignKey, Index, Integer, Unicode
-from sqlalchemy.orm import Mapped, mapped_column
+from sqlalchemy import Boolean, DateTime, ForeignKey, Index, Integer, Unicode
+from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from crudkit.core.base import Base, CRUDMixin
 
 class Inventory(Base, CRUDMixin):
     __tablename__ = "inventory"
 
+    barcode: Mapped[Optional[str]] = mapped_column(Unicode(255))
     name: Mapped[Optional[str]] = mapped_column(Unicode(255))
     serial: Mapped[Optional[str]] = mapped_column(Unicode(255))
 
-    timestamp: Mapped[DateTime] = mapped_column(DateTime)
     condition: Mapped[str] = mapped_column(Unicode(255))
+    model: Mapped[Optional[str]] = mapped_column(Unicode(255))
+    notes: Mapped[Optional[str]] = mapped_column(Unicode(255))
+    shared = Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    timestamp: Mapped[DateTime] = mapped_column(DateTime)
 
+    brand: Mapped[Optional['Brand']] = relationship('Brand', back_populates='inventory')
+    brand_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey('users.id'), nullable=True, index=True)
+
+    device_type: Mapped[Optional['DeviceType']] = relationship('DeviceType', back_populates='inventory')
     device_type_id: Mapped[Optional[int]] = mapped_column('type_id', Integer, ForeignKey("item.id"), nullable=True, index=True)
-    device_type: Mapped[Optional['DeviceType']]
+
+    image: Mapped[Optional['Image']] = relationship('Image', back_populates='inventory', passive_deletes=True)
+    image_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey('images.id', ondelete='SET NULL'), nullable=True, index=True)
+
+    location = Mapped[Optional['Room']] = relationship('Room', back_populates='inventory')
+    location_id = Mapped[Optional[int]] = mapped_column(Integer, ForeignKey('rooms.id'), nullable=True, index=True)
+
+    owner: Mapped[Optional['User']] = relationship('User', back_populates='inventory')
+    owner_id: Mapped[Optional[int]] = mapped_column(Integer, ForeignKey("users.id"), nullable=True, index=True)
+
+    def __repr__(self):
+        parts = [f"id={self.id}"]
+
+        if self.name:
+            parts.append(f"name={repr(self.name)}")
+
+        if self.device_type:
+            parts.append(f"item={repr(self.device_type.description)}")
+
+        if self.notes:
+            parts.append(f"notes={repr(self.notes)}")
+
+        if self.owner:
+            parts.append(f"owner={repr(self.owner.identifier)}")
+
+        if self.location:
+            parts.append(f"location={repr(self.location.identifier)}")
+
+        return f"<Inventory({', '.join(parts)})>"