The replacement part is compatible with Ninebot Max G30 electric scooter. Used to replace the original folding guard ring. Made of ABS material, is strong and durable, high strength, wear-resistant, non-slip and durable. Lightweight and small size,easy to install and use, fixed firmly and flexible adjustment to fit your scooter. Fits perfectly to the body of the scooter and can be freely adjusted, a good choice for replacement. Package includes 2pcs scooter folding locking rings with 4pcs screws and 2pcs nuts. 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 ABS Colour Black Size As picture shows Type Stem Rin.