With magnetic bottom, this angle measuring instrument has strong adsorption compatiblece and can be tilted and fixed upside down on the metal, which is more convenient compatible your measurement and record. Using high sensitivity bearing compatiblece dial, it can automatically determine a variety of slope. Clear scale is convenient compatible you to be able to measure the angle accurately. Fluorescent bubbles can be clearly seen at night, allowing you to calibrate horizontally and vertically. Made of high quality ABS material, it is very durable. Length of this product is 9.3cm, the width is 8.5cm and the height is 1.4cm. It is suitable compatible civil engineering, construction works, interior decoration project, measurement and so on. Item Name: Slope Angle Meter Material: ABS Accuracy: 0.1 Degree Measuring Range: 0 Degrees - 90 Degrees Features: High Sensitivity, Accurate, Clear Scale Specification: A (Without Level Bubble), B (With Level Bubble) Product Usage: Civil Engineering (Retaining Wall Construction, Ditches and Dams, Pipeline Drainage, etc.), Indoor and Outdoor Drainage Slope Setting, Slope Measurement Size Details: Length: 9.3cm/3.66" (Approx.) Height: 8.5cm/3.35" (Approx.) Thickness: 1.4cm/0.55" (Approx.) Notes: 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. Package Includes: 1 x Slope Angle Meter