Specifications Material: Plastic ColourBlack Measuring Angle: 0-360 Measuring Range: 0-200mm or 0-7Inch, 0-300mm Resolution: 0.05 Accuracy: 0.3 Repeatability: 0.05 Adapter battery: 3V CR2032 (nocluded) Package Included: 1Pc Digital Angle Ruler Features 1.0-360 Any Angle, Easy Measurement 2.Lcd High-definition Liquid Crystal, Large Digital Display, Clear At A Glance 3.Locking Knob Structure, Easy To Lock At Any Angle 4.Laser Scale, Metric And Imperial Double System 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. About shlpping: All items will be shlpped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.