Wire binding machines are ideal for presentations, reports, cook books, journals and notebooks. Documents lay flat and open 360 degrees for maximum flexibility. Factory Express offers wire binding supplies in two styles: Double loop wire (twin loop wire, WireBind, Wire-O and Double-O wire) and Spiral-O wire. Both wire binding formats are available in standard and custom colors. Double Loop Wire aka twin loop wire, WireBind, Wire-O and Double-O Wire is available in diameters ranging from 1/4" to 1-1/4". Double loop wire binding requires a wire closer and a machine that punches a round or square hole pattern, 3:1 (32 holes per 11") or 2:1 (21 holes per 11"). Shop for Double Loop Wire Binding Supplies. Spiral-O Wire is the only wire binding that conforms to the standard hole punching pattern of plastic comb binding machines. Spiral-O wire is available in diameters ranging from 1/4" to 1". Spiral-O wire binding requires a wire closer and a machine that punches a rectangular comb binding pattern (19 holes per 11"). Shop for Spiral-O Binding Supplies. Factory Express offers a wide selection of wire binding machines and supplies to meet your needs.