Make sure you're getting the best deal on high quality binding supplies with our line of MyBinding Spiral-O 19 Loop Wire Binding Supplies. Have a plastic comb binding machine, but you also like the look of wire binding? Then these are the right binding spine for you! Spiral-O wire binding is similar to twin loop wiring, but there's only 19 loops. It is designed for plastic comb binding punch with a built-in wire closer. Sheet capacities with our Spiral-O wires range from 40 to 200 sheets of 20lb paper. We have them in four colors: black, white, silver, and royal blue. Get binding today with our unique Spiral-O wires.