This vehicle has been maintained by an amateur so that you can enjoy it for a long time. Of course, the operation has been confirmed. My operation check means confirming that it runs properly. It's not just "it moved when I put in batteries, so it's good!" Please feel free to comment if you have any concerns or would like additional images, so we can have a smooth transaction. Really, please refrain from contacting me if you are overly sensitive. I have other items for sale. If you wish to purchase multiple items, please use the "request combined purchase" function. I will accept almost all requests except for manually entering the desired price. Please also take a look at my profile. The following information is for those who are interested. Here is the work that has been done: ★ Removal and cleaning of dust, hair, etc. from around the wheels and motor unit of the power car. There may be some areas that couldn't be completely cleaned. ★ Replacement of wheel gears. If the gears are cracked, the vehicle will not run properly. For example, it might not be able to climb hills. There are repair marks from the gear replacement. ★ Independent maintenance of the motor. The motor's original performance has been restored. I haven't replaced it with an aftermarket motor, so you should still be able to request repairs from the manufacturer. They won't accept modified items. ★ Replacement of rubber tires with new ones. Hard rubber tires will not allow the vehicle to climb hills. ★ Cleaning of the exterior using various cleaners. The above is the maintenance content. I have not done anything more than this. May you have a good relationship with this item. m(_ _)m