... /2" x 1/2"12.7mm x 12.7mm16,17,18,19,20,21,22,235/8" x 5/8"16mm x 16mm18,19,20,21,3/4" x 3 ... /4"19.1mm x 19.1mm16,17,18,19,20,211" x 1/2"25.4mm x ... ,211-1/2" x 1-1/2"38mm x 38mm14,15,16,17,18,191" 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 ...