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2-Inch Heavy Duty 2-Ring Binder – Top Opening | Carstens
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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