The Spitfire SF F4 99 SLAG Sessions Conical Full Natural 52mm Wheels. Crafted from Spitfire's premium Formula Four urethane, these wheels offer exceptional performance. With a conical full shape and a wider riding surface, they provide control and stability across all terrains. The cut-in sidewalls reduce weight without compromising durability. Skate like a pro with this set of 4 natural wheels boasting a 101a durometer that resists flatspots. Elevate your ride today!