Feature: 2-in-1, to measure both length and angles Measuring ranges 0-360 High resolution 0.05 Three function key With hold function Zero-setting at any position Inside & outside angles measure 3V environmental Lithiumbattery, battery life >1 year (not include) Quick display of the measured values on big LCD screen With on-off power switchs & Auto power-off for option can fix the measuring angles in any position Attention: according to industrial standard Due to different Monitor, the color may have difference Due to hand measure ,Please allow 1-3% difference tolerance Due to long shipping, the item may damage in transit, if the item damage, please contact us firstly immediately before leave feedback, thanks for your understanding Specification: Color: Black, Gray Ruler body Material: Plastic Shell:Plastic Size: 20cm Quantity: 1Pc Note: And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1pcs Ruler