... . Alloy core scooter wheels:1-CNC machined alloy 6061 /T6, High strength and hardness, compound hub.2-The high quality metal core wheel fits almost ... all scooters. Such as Razor, Madd gear, JD Bug, etc ;3-High rebound Urethane PU wheel;4 ... any time,we will reply you asap.Thank you! Alloy core scooter wheels