Description: The ruler body is made of ABS plastic, sturdy and durable, TPR non- handle, comfortable grip Double focus on the standard circle level tube, increase the fluorescent blisters, which are clearly visible in the dark. Scale rotating wheel design, easy to adjust the bubble position of the horizontal tube, easy to use The ruler aluminum alloy edging, with magnetic design, can be easily adsorbed on the metal, easy to measure The indicator needle is accurate, the scale is clear, and the large numbers are easy to read. Slope and angle comparison table on the back for easy conversion It is widely used in various indoor decoration, construction engineering, pipeline construction, staircase engineering, and the measurement of slope inclination angle Specification: Material:ABS+Plastic Size:Approx.250x125x21mm/9.84x4.92x0.83inch Scope of application: 130-0-130 degrees, 90-50-0-50-90 degrees Package Includes: 1 Piece Slope Measuring Instrument Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may -2cm error in size.