Features: Used to quickly and accurately check whether the vehicle has been painted in the past. The tester does not need battery power-supply and calibration, and can be used for many years. Used to detect the thickness of paint coating invisible to the naked- eye on vehicles made of steel plate and galvanized steel. The tester can let you know whether the car accident hidden- under the beautiful varnish. Shaped as a small pen, and made of quality materials, making it the perfect choice to carry around and for always- be prepared. Specifications: Material: aluminum+plastics+magnet Length: approx 13.7cm/5.4-inch Package Includes: 1x Paint Thickness Tester note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.