This is for use with a TRX-4. The tires have been used for a few packs, so they're probably a bit worn. The wheels were assembled later and have hardly been used, so they're in good condition. Wheel weights are attached inside the tires. These are used items, so please be aware that there are some scratches. I've forgotten the specifics, so please check the photos and make your own judgment. Traxxas traxxas trx6 crawler