[Accurate measurement, easy reading] Smooth metal wheel, loose finger design does not hurt the ruler, quick reading measurement, easy reading [High quality stainless steel, carefully forged] Selection of high quality stainless steel forging quality, using hardened process, will not rust, more durable, longer life [Large screen digital display, clear readings] Glass digital mirror, metric and imperial 2 modes for switching freely [Flexible measurement, fixing nut] Rotate the 'nut for adjusting the tightness, fixed measurement (clockwise, counterclockwise) [laser scale, clearly visible] Laser engraving, fine forging process, the scale is clear, convenient and accurate readings For manufacturing work You will find pleasure in your daily work when you have a precision instrument to measure not only exterior dimensions, but also interior dimensions and depths. The digital gauge is essential to ensure that the dimensions of the material are always accurate. With its exceptional smoothness, its wheel, its locking screw, its mm / inch / fraction switch, its large and clear screen, its automatic on / off. In this decent package you receive: 1 x Electronic Digital Caliper 1 x Strong Plastic Case 1 x 1.5V Button Battery 1 x Mini Screwdriver