Features: Laser-cut from premium-hardened stainless steel then diamond ground for the perfect-finish,these discs not only look great but also offer a substantial weight reduction over standard OEM equipment. The brake disc adopts high quality metal material, witch owns lightweight and durable features. The brake disc is not easy to deform, anti-rust and will not fade, more durable and stable to use. The brake disc has many different shape hole on its body. This hollow design can reduce reduce the weight of brake pads, enhance appearance and reduce heat transfer. It has excellent braking power and show stable performance in wet or dry conditions,with smooth braking and good grip. Easy installation, No install instructions. Specifications: Material:Stainless Steel Size:As Picture Shown Color:Silver For 400CC XR400 XR600 TRX400X Package Includes: 1x Rear Disc Brakes note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.