D-Line Wood and Plastic Bookcase Bookshelf Storage Shelf, White, Set of 2 Environmental material: Wood & plastic mixed material light (less than 10 lbs.) but sturdy (10-15lbs weight bearing on each cube) fireproof Easy assembly: Easy to assemble in 2-3 minutes no tools & screw required, snaps together like puzzle, can use together, side by side or separated Advantages: Smooth finishing can be clean with water directly