Features: Clear scale: this slope measuring ruler has exquisite indicating needles and clear dial, which is convenient for users to check. Scale rotating wheel design: a scale rotating wheel is arranged on the slope ruler to adjust the position of the bubble in the leveling tube. Magnetism design: strong magnetism design at the bottom of the slope ruler, which can be fixed on the metal for convenient measurement and recording. Fluorescent blister design: the slope ruler has high-density fluorescent blisters, which can also help you check clearly at night. Angle comparison table: the comparison table of the back angle and slope of the slope ruler is convenient for you to use and compare. Specifications: Material: Plastic, Metal Size: 9.84x4.92x0.79inchesPackage List: 1 x Magnetism Slope Measuring Instrument OR 1 x Nonmagmatism Slope Measuring Instrument Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.