Features: Double side English/Chinese marking on premium stainless steel ensures corrosion resistance and precise thread pitches/diameter measurements for professional. Engraved scale provide lastingly clear for measuring screw thread, bolts, and mechanical component. Essential tool for machinists, inspectors, and DIYer enthusiasts working with threaded fasteners. Optimized for workshop environment, production lines, and field maintenance where multilingual measurement precise matters most. Features nonslip edges for repeated use in oily or humid industrial conditions. Specifications: Component: Stainless steel. Size:Approx.150x50x2mm/5.9x1.96x0.07inch Color:Silver Quantity:1pcs/2pcs/3pcs Weight: 20g Package Includes: 1pcs/2pcs/3pcs Thread Pitches Gauge note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.