The SHW Performance Drilled Monobloc Rotors PFR33009 is a high-performance automotive brake rotor. It is designed with a monobloc construction, meaning it is made from a single piece of material for increased strength and durability. The rotors are also drilled, which helps to dissipate heat and prevent brake fade for improved braking performance. This product is suitable for use in high-performance vehicles and is designed to provide reliable and consistent braking in demanding driving conditions.