1The product is made of ABS material, with good toughness, resistance to falling, and no fear of falling damage. 2The back adopts strong magnetic adsorption design, which can adsorb on the surface of ferrous metal during work to improve stability and make measurement more precise. 3Used for horizontal adjustment, suitable for all kinds of pipes, columns, signs, etc., to confirm whether the installation is horizontal and the angle is right. 4Horizontal bubble observation is easy to sing, allowing you to make accurate judgments. 5The measurement accuracy is high and the measurement accuracy is 0.5mm. Feature: The product is made of ABS material, with good toughness, resistance to falling, and no fear of falling damage. The back adopts strong magnetic adsorption design, which can adsorb on the surface of ferrous metal during work to improve stability and make measurement more precise. Used for horizontal adjustment, suitable for all kinds of pipes, columns, signs, etc., to confirm whether the installation is horizontal and the angle is right. Horizontal bubble observation is easy to sing, allowing you to make accurate judgments. The measurement accuracy is high and the measurement accuracy is 0.5mm. Specification: Model: #1, two side hook fixed; #2, one side hook fixed, one side needle fixed; #3, adjustable angle (Optional) Material: ABS Measure precision: 0.5mm Angle(Fixed): 90 Measure range: 120mm Product dimension: #1, 12.4*10.8*7.9cm(length * width * oblique length) #2, 13.9*12.4*9.1cm(length * width * oblique length) #3, 18.8*13.4*1cm(length * width *height) Package list: 1 * Magnetic Folding Cylinder Level 1 * Elastic band Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Have a great time shopping!