Type "A" Hook-On Bins for Bin Storage Cabinets are to assist in Custom Configurations or replace existing parts. Bin Storage Cabinets are designed for high density storage and organization of parts. These cabinets offer easy accessibility to contents while maintaining cleanliness and security. Bins are made of a durable polyethylene with molded-in back hook for secure hanging. Front edges are lowered for better visibility and easier part picking. When not in use bins can be stacked on shelves, worktables, carts, or other flat surfaces. *Back and door louvered panels for customized configurations. Bins are 4"Wx5"Lx3"H.