Material:steel finished:zinc/chrome/powder coated Capacity:40-150kg Used in book room ISO&CE,Agreeable price&high quality Wiry Book Rack:Main parts:shelving and post. Description of shelving:1. Split sleeves for easy assembly, please view picture;2. Finished: chrome, zinc,powder;3. Shelf have many kinds of styles:Light duty shelf, Heavy duty shelf, Slide shelf , Single hole shelf, Two hole shelf, ...