This item is for use with a TRX-4. Although it was used, it was only driven for 2-3 minutes inside the warehouse, so I think the condition is good. Wheel weights are attached inside the tires. Since this is an item that has been actually used, there are some scratches, so please understand this before purchasing. I have forgotten the details, so please check the photos and make your judgment. Traxxas traxxastrx6 crawler