"1/32"markings for "0 to 25"measurement Handy pocket clip Works well in narrow spaces feature:tire tread depth gauge,depth gauge,tread depth gauge,tire gauge,pressure gauge Calibration: a) 0-32ndsb) 0.5-3.5kgsc) 1-25mmInner packing:1pc/blister card 50pcs/boxOuter packing:500pcs/ctn Dimensions: 50*30.5*49cmN.W.: 8.5kg G.W.: 10kg Economical Tire tread depth gauge