Heavy-duty view binder offers sturdy construction to prevent cover from tearing or cracking. Design features an extra-durable hinge and custom-formulated PVC-free polypropylene. Polypro binder is eco-friendlier than vinyl binders and lasts up to 10 times longer. Three never-gap round rings provide spill-free document security. Clear view covers and spine allow quick easy binder customization. Wilson Jones Extra-Durable Hinge Heavy-Duty View Binder White 1 Each (Quantity)