Ruby Paulina 17" x 11", 1" Angle-D Ring Vinyl View Binder (615910) 2 colored layers of 12 gage vinyl, and a layer of clear 7 gage vinyl, sealed over rigid .135 pt. chipboard panels 3 layers of vinyl sealed to create a heavy duty ribbed hinge Standard 3 hole, (Three) holes, 4.25" (4-1/4 inch) Center to Center. Capacity: 1" (one inch) Fastener System: Angle-D Ring