These Kyosho Avantie rear foam tires are designed for 1/10 scale on-road touring car competition. Foam construction provides a consistent contact patch without the need for air pressure management. Sold as a set of two and mounted on multi-spoke black plastic wheels, they are ready to install. The 37 shore hardness rating indicates the tire compound, helping racers select the right tire for their track surface and conditions. Features: Foam tire construction, no inflation required 37 shore compound for surface-specific traction tuning Mounted on black multi-spoke plastic wheels Sold as a set of two rear tires Fits a wide range of 1/10 on-road touring car platforms 7/7/26 cs