Check the listing for details. Plastic Comb Binding, 19 Ring - Assorted Colors and Sizes - Huge Savings!. Condition: New. Listed at 13.75 USD. With 19 Ring Plastic Comb Bindings, turn your thoughts and ideas into attractive, professionally bound presentations that everyone will want to read. Our binding combs are available in diameters from 1/4" to 2" and in a rainbow of colors. Our comb bindings are compatible with all plastic comb binding machines. !Super discount prices on Maroon and Clear 1/4" , Maroon and Red 5/16", Gray 7/16", Clear 7/8", Royal Blue and Maroon 1-1/8", Royal Blue and Red 1-1/2", Green, Royal Blue and Red 1-3/4", Royal Blue 2"! Contact us for even greater savings on bulk purchases! IMPORTANT: It is important to remember that the plastic binding combs should always be 1/8" larger than the thickness of the book. The easiest and simplest means of determining the proper diameter is to measure the book including covers and add 1/8".Sizing Table (approximate):# Sheets for BindingUse This DiameterQuantity (pcs./box)20 sheets1/4"10040 sheets5/16"10055 sheets3/8"10070 sheets7/16"10090 sheets1/2"100100 sheets9/16"100120 sheets5/8"100150 sheets3/4"100170 sheets7/8"100200 sheets1"100220 sheets1- 1/8"100230 sheets1- 1/4"100290 sheets1- 1/2"100360 sheets1- 3/4"50425 sheets2"50