ITEM NAME:Membrane plastic denture tooth box transparent tooth box plastic denture box LJ Features: This crown box is made of clear plastic with two clear holding membranes. When a single crown or a three- unit bridge or a six- unit bridge or more is placed in the box, it appears as it is floating in air,even as it is held firmly in place by the membranes. This Crown box is perfect for.Quantity:1 pc.