Binding supplies sizes and colors chart | USI Laminate
Amazon.com : 150 Pack Plastic Binding Combs Plastic Comb Binding Ring 19 Ring Comb Binding Spines Letter Size Plastic Spiral Binding for Notebook Calendar Picture Album (Multi Colors,1/4 5/16 3/8 1/2 5/8 3/4 in) : Office Products
Fellowes A4 14 mm Plastic Binding Combs for Comb Binding Machine, Binds 81 to 10 | eBay
Comb Binding Spines - RAYSON
Amazon.com : Binditek 100 Pack Plastic Comb Binding Spines, 1/2 Inch Diameter, 75 Sheet Capacity, Letter Size Black Binding Comb, for Students and Coworkers : Office Products