PSA Disc Roll 6 In – P180B Champagne Magnum 6 In – P180B Grit. 30% – 50% gains in cut rate, far less loading on the job and greater worklife. Entirely new level of work speed is attainable. Agressive sanding action isn`t easily dulled. New anti-loading agent which actually throws dust from the grain as it cuts. New latex-reinforced backing can withstand whatever job torture you throw at it. Unparalled speed, scratch consistency and an overall quality of finish never before achieved.