Features:_x000D_Clear scale: this slope measuring ruler has exquisite indicating needles and clear dial, which is convenient for users to check._x000D_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._x000D_Magnetism design: strong magnetism design at the bottom of the slope ruler, which can be fixed on the metal for convenient measurement and recording._x000D_Fluorescent blister design: the slope ruler has high-density fluorescent blisters, which can also help you check clearly at night._x000D_Angle comparison table: the comparison table of the back angle and slope of the slope ruler is convenient for you to use and compare._x000D_Specifications:_x000D_Material: Plastic, Metal_x000D_Size: 9.84*4.92*0.79inchesPackage List:_x000D_1 * Magnetism Slope Measuring Instrument _x000D_OR _x000D_1 * Nonmagmatism Slope Measuring Instrument