Specifications Material: Stainless Steel Color: Silver Size: 200mm, 300mm, 500mm 2-in-1, to measure both length and angle Stainless steel or plasitc material Measuring range 0-360 High resolution 0.05 Three function key With hold function Zero-setting at any position Inside & outside angle measure 3V environmental Lithium battery, battery life >1 year (not include) Quick display of the measured value on big LCD screen With on-off power switch & Auto power-off for option Fastening screw to fix the measuring angle in any position Package Included: 1Pc Digital Angle Ruler Notes 1. Please allow slight measuring deviation due to manual measurement. 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 3.Please leaving a message before you give the bad feedback, if the products have some problems.Thanks for your understandings.