Heavyduty view binder offers sturdy construction to prevent cover from tearing or cracking Design features an extradurable hinge and customformulated, PVCfree polypropylene Polypro binder is ecofriendlier than vinyl binders and lasts up to 10 times longer Three nevergap round rings provide spillfree document security Clear view covers and spine allow quick, easy binder customization The 1 binder holds 550 sheets and has two interior pockets for loose documents