Applies to: 1/10 On Road Car tires All tires have been installed to the wheels already， ready for install to your car! Excellent tires for high speed racing! 100% Brand New High quality Tires Material: Silicon Rubber Wheel Material: Plated plastic Outer Diameter: 67mm inner Diameter: 52mm Wide: 26mm Hexagonal: 12mm Packages includes: 4x Tires + 4x Wheels Note: The tire is not glued on rim. It's mounted on rim with foam inserted.