SDS binders are made of a tough flexible yellow vinyl for durability in all environments. Binders come standard with a chain to keep them at one location where workers can find them easily. Binders are available with three different ring sizes, 1½", 2½", and 3". Their are two different styles of binders, Standard and Job Site. The Job Site SDS binder combines portability and convenience. Handles fold in for storage and flip out for carrying. It has two sets of 1" nylon rings and will hold approximately 400 sheets. Job Site MSDS binder size is 12"H x 14"W x 4½"H.