4PCS Black 1:10 Scale RC Tires Wheel Rims Crossing Rubber Off-Road Parts Tires Outer Diameter: 65mm/2.56"; Tires Inner Diameter: 45mm/1.78" Wheels Outer Diameter: 52mm/2.04"; Hexagon Coupling: 12mm/0.47" Tires Width: 26mm/1.02"; Rubber Material Tires and wheels are assembled together, not glued Suitable for RC 1:10 Racing Car,Electric car