Compatibility: Steering Bearing Kit is compatible with Ninebot Max G30 electric scooters. Material: Roller steering bearing is made of metal material, it is corrosion resistant and durable in use. Easy to use: Scooter bearing cup is reasonable design makes it easy to install and disassemble and use. Main function: The main function of the scooter repair parts kit is to repair and replace steering bearings for electric scooters. Practicality: Roller pole rotation kit with high performance, strong practicality. Warning: It is illegal to ride electric scooters on public roads, pavements, or cycle paths. They are intended only for use on private land with the owner's permission Material Metal Colour Black, Silver Type Steering Bearing Kit .