It is a versatile and reliable tool designed to ensure optimal accuracy in various measurement tasks. It offers a measurement accuracy of 1 mm and a range of angles from 45 to 90 degrees. Main features: Precisely engraved scales - it features clear, easy-to-read scales, allowing you to make accurate measurements effortlessly. The scales are not fade. Precise measurements - the base of the ruler is equipped with an integrated positioning ball for easy movement and a green bubble level to ensure correct alignment. You can achieve precise markings between 45 and 90 degrees. Reliable - with its alloy construction, our ruler is designed to be reliable. It is rust resistant, long service life and does not deform over time. Versatile - it is a versatile tool that can be used in various trades and hobbies. From measuring and marking angles to checking squareness and making precise cuts. Specifications and specifications Material: aluminum alloy Accuracy: 1 mm Contents of the package 1 * combined square marking rule bracket 45-90 degree Remarks: Please ensure that the ruler is properly locked before taking action to ensure accuracy.