Feature: 1. High‑quality stainless steel material, it is not easy to deform and more durable. 2. Convenient and simple to disassemble, easy to operate and install. 3. Provide a good friction effect and effectively improve the braking performance. 4. 5.5in diameter, 1.5in inner diameter, direct replacement for old brake disc. 5. Practical accessory for electric scooter, which is dependable to use.