Omnimed 1.5 inch Poly binders are made of a molded hospital grade tri-polymer material that is strong, flexible and easy to clean. Equipped with our patented twin-hinge system, sheets are easily added and secured in the binder. They are warranted to last and can withstand the hardest use without ripping or ring failure. These binders have 3 heavy duty steel rings and come in a variety of fade-resistant colors to compliment your office or home needs. Each binder can accommodate up to 300 Plus sheets and measures 11 5/8H x 11 1/8W x 21/8D.