Item Type: 2 In 1 Digital Protractor Product Specifications: Accurate magnetic aluminum alloy 2-in-1 digital display angle ruler with power switch, measurement unit conversion at any position, 0 reset at any position. Uses: Widely used for measurement of various angles. Standard: National Standard Industrial Standard Specification: 0-360 angle measurement range reading value: 0.05 Accuracy: 0.2 Battery specification: 3V CR2032 lithium battery (shipped without battery) Size: Approx. 30.5cm / 12in 1With power switch, measurement unit conversion at any position, 0 reset at any position 2Widely used for measurement of various angles, it is a very practical tool 3Strict quality control and quality assurance, high safety factor, can be used with peace of mind 4Small size, easy to carry and store, convenient to use and with good performance 5Using high?quality materials, strong and durable, has a long service life1 x Digital Protractor