Poly binders are lightweight and made to last. Made of quality 23 gauge polyurethane, our poly binders are an economical and durable choice for your bindery needs. Each binder has 3 round 1″ rings and will accommodate a 1/2″ tab. Rivets on spine are exposed. Includes 1 color imprint. Set-up included in price. 11″x8.5″ sheet size.