This electric starter 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 starter, so as not to damage motor or bearing. Please don't use it when the engine is dead, so as not to damage the gear. Material:plastic colour:black Package Contents: 1 * Handheld Power Starter set Only 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.