Clear Rigid Injection Molded Styrene = Low Cost and SturdyTop fits tight to keep your items SAFE and DUST FREE!Stackable Design! Bottoms Fit into Recess in TopsGreat for. Desk Organization, Product Packaging, Item Displays, Our Clear Injection Molded Rigid Styrene Display Containers are Durable Units to Display, Package or Store Your Products, Collectibles or Other Items.These Clear Plastic Containers are Strong and Not Flimsy Like Vinyl or PVC Containers.