Model Number
double loop wire binding 11 6.4mm 1/4 white or black 80000pitch
7.9mm 5/16 white or black 58000pitch
9.5mm 3/8 white or black 42000pitch
11.1mm 7/16 white or black 28000pitch
12.7mm 1/2 white or black 24000pitch
14.3mm 9/16 white or blck 18000pitch