... In inchIn metric unit(mm)1/4" x 1/4"6.4mm x 6.4mm22,23,243/8" x 3/8"10.6mm x 10.6mm19,20 ... ,21,221/2" x 1/2"12.7mm x 12.7mm16 ... ,17,18,19,20,21,22 ... ,191" x 2"25.4mm x 50.8mm14,15,162" x 2"50.8mm x 50.8mm12,13,14,15,16Technical Note: 1.Standard roll length: 30m;width: 0 ...