This item is for use with a TRX-4. Although it was used, it was only driven for 2-3 minutes inside a warehouse, so I think the condition is good. Wheel weights are attached inside the tires. Since this is an actually used item, there are some scratches, so please understand this before purchasing. I've forgotten the details, so please check the photos and make your own judgment. Traxxas traxxas trx6 crawler