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!" To ensure a smooth transaction for both parties, please feel free to comment if you have any questions or would like additional pictures. Seriously, 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 bulk purchase" feature. I will almost always accept requests, except for manual price input. Please also take a look at my profile. The following information is for those who are interested. Here are the maintenance details: ★ Removal and cleaning of dust, hair, etc., around the wheels and motor unit of the power car. Some parts may not be completely removed. ★ Gear replacement and cleaning. The vehicle will not run properly if the gears are broken. For example, it won't climb hills. There are repair marks from the replacement work. ★ Independent motor maintenance. Restoring the motor to its original condition. It is not replaced with an aftermarket motor, so it should be possible to request repairs from the manufacturer. They won't accept modified items. ★ Battery terminals have been replaced. ★ Rubber tires have been replaced with new ones. Hard rubber tires will not be able to climb hills. ★ Exterior cleaning using various cleaners. These are the maintenance details. Nothing more has been done. May you have a good experience. m(_ _)m