This electric is a accessory, suitable for grade full vehicle series 16/18/21 class engine. Other vehicle systems are not suitable for this suit.The RC540 motor is used for electric start. It starts at 2-3 seconds each time, and it has frequency like hand start.Do not start continuously for more than 5 seconds when using electric , so as not to damage motor or bearing.Please don't use it when the engine is dead, so as not to damage the .Material:plasticcolour:blackPackage Contents:1 * Handheld setOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.