This vehicle has been maintained by an amateur so that you can enjoy it for a long time. Of course, 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 that we can have a smooth transaction. Seriously, please refrain from interacting if you are overly sensitive. I have other items for sale as well. If you would like to purchase multiple items, please use the "request combined purchase" function. I will almost always accept requests, except for manual entry of the desired price. I would also appreciate it if you could take a look at my profile. Please see below if you are interested. Here are the maintenance details. ★ Removal and cleaning of dust, hair, etc. from the wheels and motor unit of the power car. There may be some areas that cannot be completely removed. ★ Gear replacement and cleaning. If the gears are broken, the vehicle will not run properly. For example, it may not be able to climb hills. There are repair marks from the replacement work. ★ Independent motor maintenance. Restoring the motor to its original condition. I have not replaced it with an aftermarket motor, so you may be able to request repairs from the manufacturer. They will not accept modified products. ★ Replacement of rubber tires with new ones. Hard rubber tires will not allow the vehicle to climb hills. ★ Exterior cleaning using various cleaners. The above are the maintenance details. I have not done anything more than this. I hope we have a good relationship m(_ _)m