moldable plastic

Sterilite Large Nesting ShowOffs, Stackable Small Storage Bin with Latching Lid and Handle, Plastic Container to Organize Office Files, Clear, 18-Pack

Sterilite Mini Crate, Stackable Plastic Storage Bin with Handles, Organize Home, Garage, Office, School, Dorm Room, Clear, 12-Pack

Sterilite Nesting ShowOffs Clear File Box w/ Latches