diff --git a/pallets/api/src/nonfungibles/types.rs b/pallets/api/src/nonfungibles/types.rs
index 6420bc38..53930bda 100644
--- a/pallets/api/src/nonfungibles/types.rs
+++ b/pallets/api/src/nonfungibles/types.rs
@@ -6,7 +6,7 @@ pub use pallet_nfts::{
 	MintWitness,
 };
 use scale_info::TypeInfo;
-use sp_runtime::{BoundedBTreeMap, RuntimeDebug};
+use sp_runtime::RuntimeDebug;
 
 // Type aliases for pallet-nfts.
 pub(super) type NftsOf<T> = pallet_nfts::Pallet<T>;
@@ -21,18 +21,10 @@ pub(super) type CollectionIdOf<T> =
 	<NftsOf<T> as Inspect<<T as frame_system::Config>::AccountId>>::CollectionId;
 pub(super) type ItemIdOf<T> =
 	<NftsOf<T> as Inspect<<T as frame_system::Config>::AccountId>>::ItemId;
-pub(super) type ApprovalsOf<T> = BoundedBTreeMap<
-	AccountIdOf<T>,
-	Option<BlockNumberFor<T>>,
-	<T as pallet_nfts::Config>::ApprovalsLimit,
->;
 pub(super) type ItemPriceOf<T, I = ()> = BalanceOf<T, I>;
 // TODO: Multi-instances.
-pub(super) type ItemDepositOf<T, I = ()> = ItemDeposit<BalanceOf<T, I>, AccountIdOf<T>>;
 pub(super) type CollectionDetailsFor<T, I = ()> =
 	CollectionDetails<AccountIdOf<T>, BalanceOf<T, I>>;
-pub(super) type ItemDetailsFor<T, I = ()> =
-	ItemDetails<AccountIdOf<T>, ItemDepositOf<T, I>, ApprovalsOf<T>>;
 pub(super) type AttributeNamespaceOf<T> = AttributeNamespace<AccountIdOf<T>>;
 pub(super) type CreateCollectionConfigFor<T, I = ()> =
 	CreateCollectionConfig<ItemPriceOf<T, I>, BlockNumberFor<T>, CollectionIdOf<T>>;