Feature: new and high quality With free rotation type, its high degree of sensitivity, providing slope and inclination. Learn road conditions, increase traffic safety Ergonomic design, adjustable viewing angle, fine workmanship It can accurately show the exact degree downhill, uphill Details can locate the slope angle of the left or right Adjustable stand can be installed in any position, as long as you can maintain a balance Installation: The base comes with adhesive easy to install. Can be attached to the interior of the car to facilitate observation of any place Place the car on a level surface and then manual adjustment to the level surface Note: Left and right oblique side can not exceed 40 degrees, otherwise there will be dangerous Specification: Material: Plastic Color: black Accuracy: ± 2 ° Size: about 6x6x8.5cm Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement.