... 10.6mm x 10.6mm19,20,21,221/2" x 1/2"12.7mm x 12.7mm16,17,18, ... DiameterIn inchIn metric unit(mm)2" x 3"50mm x 75mm2.0mm,2.5mm,1.65mm3" x 3"75mm ... x 756mm2.67mm,2.41mm,2.11mm,1.83mm,1. ... x 4"50mm x 100mm2.11mm,2.5mm4" x 4"100mm x 100mm2.0mm,2.5mmTechnical Note: 1.Standard roll length: ... DiameterIn inchIn metric unit(mm)1/2" x 1/2"12.7mm x 12.7mm16,17,18,19 ...