diff --git a/libs/common/src/modules/space-model/entities/subspace-model/subspace-product-item-model.entity.ts b/libs/common/src/modules/space-model/entities/subspace-model/subspace-product-item-model.entity.ts
index decd0a7..3821e5c 100644
--- a/libs/common/src/modules/space-model/entities/subspace-model/subspace-product-item-model.entity.ts
+++ b/libs/common/src/modules/space-model/entities/subspace-model/subspace-product-item-model.entity.ts
@@ -1,7 +1,8 @@
 import { AbstractEntity } from '@app/common/modules/abstract/entities/abstract.entity';
-import { Entity, Column, ManyToOne } from 'typeorm';
+import { Entity, Column, ManyToOne, OneToMany } from 'typeorm';
 import { SubspaceProductItemModelDto } from '../../dtos';
 import { SubspaceProductModelEntity } from './subspace-product-model.entity';
+import { SubspaceProductItemEntity } from '@app/common/modules/space/entities';
 
 @Entity({ name: 'subspace-product-item-model' })
 export class SubspaceProductItemModelEntity extends AbstractEntity<SubspaceProductItemModelDto> {
@@ -18,4 +19,9 @@ export class SubspaceProductItemModelEntity extends AbstractEntity<SubspaceProdu
     },
   )
   public subspaceProductModel: SubspaceProductModelEntity;
+
+  @OneToMany(() => SubspaceProductItemEntity, (item) => item.model, {
+    nullable: true,
+  })
+  items: SubspaceProductItemEntity[];
 }
diff --git a/libs/common/src/modules/space/entities/subspace/subspace-product-item.entity.ts b/libs/common/src/modules/space/entities/subspace/subspace-product-item.entity.ts
index 671b046..5041053 100644
--- a/libs/common/src/modules/space/entities/subspace/subspace-product-item.entity.ts
+++ b/libs/common/src/modules/space/entities/subspace/subspace-product-item.entity.ts
@@ -2,6 +2,7 @@ import { AbstractEntity } from '@app/common/modules/abstract/entities/abstract.e
 import { SpaceProductItemDto } from '../../dtos';
 import { Column, Entity, ManyToOne } from 'typeorm';
 import { SubspaceProductEntity } from './subspace-product.entity';
+import { SubspaceProductItemModelEntity } from '@app/common/modules/space-model';
 
 @Entity({ name: 'subspace-product-item' })
 export class SubspaceProductItemEntity extends AbstractEntity<SpaceProductItemDto> {
@@ -18,4 +19,9 @@ export class SubspaceProductItemEntity extends AbstractEntity<SpaceProductItemDt
     },
   )
   public subspaceProduct: SubspaceProductEntity;
+
+  @ManyToOne(() => SubspaceProductItemModelEntity, (model) => model.items, {
+    nullable: true,
+  })
+  model: SubspaceProductItemModelEntity;
 }