School Smart Polypropylene D-ring Binder, 2 Inches, Blue : Target
Germany made Hole Holder Heavy Duty 2 Rings Binder 1 1/2'' Red 11'' x 12 1/2'' | eBay
Amazon.com : Lever Arch 2-Ring Binders; 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) (25 Unassembled Binders, Red) : Office Products