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Twin Loop Wire™ 3:1
Twin loop wire™ provides a durable book binding solution. Sometimes referred to as spiral binding, double loop wire binding, or ring wire binding. This method provides a high-tech contemporary presentation and books open a full 360 degrees. Twin loop wire™ binding is also very durable and withstands temperature extremes. Diameters 9/16" and smaller are 3:1 pitch, 32-hole; diameters 5/8" & larger are a 2:1 pitch, 21-hole. |
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