Premium Stainless Steel Material: This 100% brand new scooter rear auxiliary wheel bearing is made of high quality stainless steel material, which is corrosionresistant and durable. It is not easy to break, has reliable quality and long service life. High Performance: The electric scooter wheel bearing has high performance and strong practicability, which is a great accessory for your scooter. High Load: The scooter rear wheel bearing has high load, and it is conducive to the repair of rear wheel noise. Suitable For: The electric scooter rear auxiliary wheel bearing is used for repairing and replacing your damaged bearings on the rear wheels, and it is suitable for Xiaomi M365/1S/PRO/PRO2 electric scooters. Product Specification: Item type: rear auxiliary wheel bearings; material: steel; outer diameter: approx. 28mm / 1.1in; inner diameter: approx. 12mm / 0.5in; thickness: approx. 8mm / 0.3in; product weight: approx. 41g / 1.4oz. 2Pcs Stainless Steel Scooter Ball Bearings Electric Scooter Rear Auxiliary Wheel Bearings for Xiaomi M365/PRO/PRO2 Made of stainless steel material, it is corrosionresistant and durable in use. High performance, strong practicability, long service life, and longterm use. Dust cover bearing, high load, is conducive to the repair of rear wheel noise. Used for repair and replacement of damaged bearings on the rear wheels and auxiliary wheels of electric scooters. It is suitable for Xiaomi M365/1S/PRO/PRO2 electric scooters to help you save maintenance costs. Specification: Item Type: Rear Auxiliary Wheel Bearings Material: Steel Outer Diameter: Approx. 28mm / 1.1in Inner Diameter: Approx. 12mm / 0.5in Thickness: Approx. 8mm / 0.3in Product Weight: Approx. 41g / 1.4oz Fuction: Used for repairing and replacing the bearings of the rear wheel and auxiliary wheel damaged. Applicable Models: For Xiaomi M365/PRO/PRO2 Rear Auxiliary Wheels Package List: 2 x Rear Auxiliary Wheel Bearings