Uxcell a13032900ux0122 350mm Long Firm Joint Metal Measurement Inside Outside Caliper (Pack of 2) Product Name : Inside Outside Caliper; Total Length : 350 mm / 13.8" Each Flute Max. Width : 20 mm / 0.79";Material : Metal Color : Silver Tone Net Weight : 338g Package Content : 2 x Inside Outside Caliper