The SHW Performance Drilled-Dimpled MB Rotors PFR39912 are high-performance brake rotors designed for use on vehicles. These rotors are made with a combination of drilled and dimpled holes, which helps to improve heat dissipation and reduce brake fade. This results in better overall braking performance and increased durability. The rotors are specifically designed for use on MB (Mercedes-Benz) vehicles and are compatible with a variety of models. They are made with high-quality materials and undergo rigorous testing to ensure optimal performance. These rotors are a great option for those looking to upgrade their vehicle's braking system.