Number of layers (specification):

[Thick and detachable] double-layer large size 50 long

[Thickened and detachable] double-layer plus size 75 long

[Thickened and detachable] single-layer large size 50 long

[Thickened and detachable] Single layer plus size 57 long

[Thickened and detachable] Single Layer Medium 42 long

[Thickened and detachable] Single layer small size 38 long

[Upgrade with cabinet door] White medium with accessories

[Upgrade with cabinet door] White large with accessories

[Upgrade with cabinet door] Black medium with accessories

[Upgrade with cabinet door] Black large with accessories

[Simple without door] White small size