Features: The reflector board is used for checking where is the dent on the the surface of flat metal. You can find the dent position by aligning line. The reflection becomes distorted at the dent position, and you can fix it with your tool to make the distorted image even or uniform again. Once the distorted image or lines become parallel in the reflection, then you have successfully removed the dent. Built-in LED, can be used indoor without the sunlight. Strong suction cup base for steadily hold. USB port for power conveniently. Suitable for automotive body dent removal, hail damage dent removal, car door ding paintless repair, etc. Specifications: Material: Acrylic Line color: black+yellow Wire Length: Approx. 5m / 16.4ft Package weight: 625g Package Included: 1 * Dent Checking Reflector Board with LED Light Package List 1The reflector board is used for checking where is the dent on the the surface of flat metal 2You can find the dent position by aligning line. The reflection becomes distorted at the dent position, and you can fix it with your tool to make the distorted image even or uniform again. Once the distorted image or lines become parallel in the reflecti 3Built-in LED, can be used indoor without the sunlight 4Strong suction cup base for steadily hold. USB port for power conveniently 5Suitable for automotive body dent removal, hail damage dent removal, car door ding paintless repair, etc