Tough yet flexible SDS poly binder is made with a durable plastic that is resistant to water, abrasion and chemicals A-Z plastic dividers are made with a heavy-duty material and make it easy to organize 25 sheet protectors are included with flaps over the top edges that keep your safety data sheets secure The 36 inch long chain locks into the binder with a clasp through a reinforced hole in the binder spine Slanted 3' binder rings have a 735-sheet capacity