Features: Premium Quality: Made of quality stainless steel polished surface wear-resistant and high-temperature resistant good workmanship not easy to deformation. Practical Design: Bike brake discs are lightweight hollow design with large ventilation holes that help to dissipate heat and reduce weight at the same time give you a better riding experience. Ideal Replacement: Premium quality repair or upgrade part. Out of box experience just for your bike disc brake kit include bike brake pad adjustment tool to let you easily adjust the gap. Widely Compatible: Suitable for most mountain bike road bike mechanical disc brake system. After-sales Service: We strive to provide each customer with the highest standard of customer service to ensure you have a pleasant shopping experience. If you have any issues inquiries or need assistance please feel free to contact us directly. Specification: Color: As Shown. Material: Stainless Steel Outer Diameter: 18cm includes: 1PC* Bike Disc Brake Rotor. 6PCS* T25 Screws.