Basic round ring view binder has clear, customizable covers so you can add fun and functional title pages. Add your very own design to the front cover, back cover and binder spine. These binders are great for use at home, at school or in the workplace. The classic 3 Ring design with round rings offers a generous sheet capacity. One inch rings hold up to 175 sheets. 2 pockets provide extra storage for loose sheets. These binders are made of PVC Free polypropylene which is a neutral plastic that is extremely durable and safe for the environment. 4 black binders per pack.