Features: 1. Civil engineering, canal and dam construction, interior decoration engineering, and other projects that must slope and inclination 2. Scale cleaning, red indicator needle, clear dial, large numbers on the readable dial, easy to read 3. Multifunctional angle measuring instrument, the tilt angle is clear at a glance, and the strong magnetic design is convenient for measurement 4. Magnetic bottom, magnetic bottom design, can be fixed on the metal, convenient for measurement and recording, without magnetic models, no such function 5. Double attention circle, vial, high-strength silver blister, can read at night, clear and convenient Specifications: Size: about 250mm*125mm/9.84*4.92inch Resolution value: plus or minus 1 degree Material: ABS Measurement accuracy: level 1 Scope of application: engineering Packing List: 1pcsx Slope Ruler Level