Small Rear Wheel Hubs for Scooter 1,meterial:aluminium alloy 2,size:17mm/22mm 3,customer-made acceptable 4, ... .Appearance inspection8.Rust prevention9.Product packaging Small Rear Wheel Hubs for Scooter1,meterial:aluminium alloy2,size:17mm/22mm3,customer-made acceptable4, free ... scooter, motorbike, bike, tricycle,segway etc. Pictures: Small Rear Wheel Hubs for Scooter