Heavy-Duty Metal 3-Ring Binder, 2" Spine - Bindertek
UNV20982 Universal® Economy 2 Inch Round Ring View Binder - Zuma
Amazon.com : Lever Arch 2-Ring Binder; U.S. Letter Size; for 2 3/4" (7 cm) Center-to-Center (cc) Paper Punches (Not for A4 Documents with 8 cm cc Spacing) (1 Assembled Binder, Blue) : Office Products