These VANSIHO bike disc brake rotors are made from high-quality aluminum, which is strong and durable, with excellent heat dissipation performance. The rotors feature a unique design with 6 holes, which not only improves the appearance of the bike but also enhances the braking performance. The rotors are suitable for mountain bikes, road bikes, MTB, BMX, and other types of bikes, and are easy to install and use. The package includes 1 PC brake rotor, 6 bolts, and 1 wrench, which is convenient for installation and maintenance.