This is a set of 2x vented brake discs for the front axle of a Volvo XC90 Mk1. The outer diameter of the discs is 328mm. These brake discs are coated and have a 5-hole rim. They are internally vented and designed as brake disc rotors. The thickness is 51.2mm, the brake disc thickness is 30mm, and the minimum thickness is 27mm. The bolt hole circle diameter is 108mm, and the centering diameter is 68mm. The weight of each disc is 11.8kg. Please ensure the products are installed correctly.