The ruler body is composed of a T-shaped ruler and a stopper. The stopper and the T-shaped ruler are made of aluminum alloy. The is black sanded and anodized, wear-resistant, rust-proof, and comfortable to the contact. Lidar marking, clear reading. The limiter is marked with a scale, with a resolution of 0.05mm, which makes the reading more accurate. T-angle square design, can measure 45 degrees, 90 degrees, 135 degrees and draw lines. With a magnet on the back, it is convenient to work in special scenes and play a fixed role. The measuring range of the T-type head is 0-100mm, the measuring range of the main scale is 0-210mm, and the upper and lower rows of scales are convenient for measuring width and depth. The design of T-shaped ruler and limit combination not only realizes the function of ordinary vernier caliper, but also increases the function of angle measurement and marking. The ruler body is ergonomically designed to reduce the pressure on the elbow or wrist. The stopper is detachable, you can use other components to completely customize the caliper according to the project. Colour: black Material: aluminum alloy Package Contents: 1 * T-type Line Drawing Device Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.