The product is a set of 4 Proline Big Joe tires, 4 Road Rage tires, and 4 spinners designed to fit either set of  tires. These high-quality tires are manufactured by Pro-Line Racing, a reputable brand in the RC hobby industry. The combination of these tires offers a variety of grip and performance options for RC truck enthusiasts, allowing for customization and optimization of their vehicle's performance on different terrains and conditions. tires and spinner mounts have 14mm hex. tires are in pretty goods shape still plenty pliable with no cracking. the 4 spinners will fit either set and adapt to 8mm axle. (fit my monster pirate) but check yours to make sure. wheels from both sets have some scratches. none of the hexes are damaged. i hate to get rid of em. spinners are loosely assembled to one of the sets of tires for shipping.