Easy to install---The starter adapter has a small body, fine workmanship, simple operation and easy installation. Just add the drill bit to the electric drill and insert it into the handheld device. Easy to use---The engine starter adapter can start the engine smoothly and protect the engine, and the electric starter adapter eliminates the pull start. Wide range of applications---It has a wide range of uses and can be used to start engines and start lawn mowers, including string trimmers, cutting machines, leaf blowers and field cultivators. Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be some color differences, please refer to the actual item received.