Professional gauge, to adjust measures. Includes 26 sheets: 0.03mm to 0.1mm in increments of 0.01 and 0.10mm to 1.0mm in increments of 0.05mm 0.03mm to 0.1mm in 0.01mm increments. 0.10mm to 1.0mm in 0.05mm increments Includes 26 sheets of 80mm long paper. .03mm to .1mm in increments of .01mm. .10mm to 1.0mm in increments of .05mm.