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 to see additional images, so that we can have a smooth transaction. Seriously, please do not engage if you are overly concerned about details. I have other items for sale as well. If you would like to purchase multiple items, please use the "request to purchase multiple items" function to consult with me. I will almost always accept requests, except for manually entering your 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. around the wheels and motor unit of the power car. There may be some areas that cannot be completely removed. ★ Replacement of wheel gears. The vehicle will not run properly if the gears are cracked. ★ Independent maintenance of the motor. 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 items. ★ Replacement of rubber tires with new ones. The vehicle cannot climb hills with hardened rubber tires. ★ Cleaning of the exterior using various cleaners. ★ Replacement and polishing of battery terminals. The above are the maintenance details. I have not done anything more than this. I hope we have a good relationship. m(_ _)m