1. Material: ABS plastic cover, stainless steel<br> 2. Size: total length about 23 cm, ruler head width 10 cm, ruler tail width 1.45 cm<br> 3. Weight: about 423 grams<br> 4 . Measuring range: 0-150mm<br> 5. Scale process: magnetic strip film<br> 6. Resolution: 0.01mm/0.005inch<br> 7. Power supply: button battery included<br> 8. Applicable: outer diameter , inner diameter, aperture, step measurement<br> Features:<br> 1. Forged stainless steel surface, not easy to rust, durable<br> 2. Large LCD screen, accurate readings, clear and intuitive, can be switched between metric and imperial<br> 3. Accurate measurement, quick return to zero, convenient work<br> 4. Nut knob adjustment, fixed measurement, flexible use (tighten counterclockwise, loosen clockwise)<br> 5. Magnetic strip film, anti- Dazzling and wear-resistant<br> 6. A conversion table is attached on the back for easy conversion