11x17 Round Ring Poly Binder 14 x 8.5 Inches, Black (412610) Standard 3 Ring, (Three) Rings, 4.25" (4-1/4 inch) Center to Center. Standard 3 hole, (Three) holes, 4.25" (4-1/4 inch) Center to Center. Binding Hinge Design: Heated and pressed-scored