Feature: *Great Easy To Read: Magnetic Angle Locator, High Visibility High Impact Brown Body, Clear Acrylic Lens With Easy To Read 0-90 Degree Increments In 4 Quadrants, V Grooved Edge To Accommodate Pipes And Conduits, Extra Ceramic Magnet strong and permanent, convenient metric ruler on 1 edge and English ruler on the other. *Great tool for finding any angle: The Magnetic Angle Locator is designed for plumbing, electrical, that require strong, magnetic contact with pipes, conduits, or other ferrous surfaces for accurate angle identification. *It is very easy to use. Just put it on any sloping surface and will point to the angle degree from 180 degree. *Strong and durable: Made of new special acrylic materials and new ABS material makes it seismic, resists ultraviolet rays, prevents leakage. Specifications: *Material: ABS, acrylic *Measure Range: 130 ° -0 ° -130 ° (50 ° -90 ° -0 ° -90 ° -50 °) 1 minute to 8 minutes (0.5 scale), 10%, 12%, 15% 18%, 20 % *Accuracy: ± 1 ° *Size: 95x95x30mm *Weight: 108g Package Included: 1 x Slope Protractor Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.