Important note: For all gasoline remote control cars or similar two-stroke hand pulls to start the gasoline engine power, when starting, first pull about 10cm and then pull hard. Remember not to directly pull the hand puller quickly and vigorously, so as not to cause the puller (starter) turbine to not find a suitable position to jam and affect the use of the product. The product for Rovan 29cc and 30.5CC gasoline powered engine modified and upgraded easy-to-start hand puller (it is easier to save effort when starting the car). This product can be purchased and installed directly without reprocessing the flywheel. RC Parts & Accs: Engines Upgrade Parts/Accessories: Adapter For Vehicle Type: 1/5 Cars colour:black Material:Aluminum die-cast metal Package Contents: 1 set x Pull Starter Only the above package content, other products are not included. Note: Light shooting 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.