Product Description 6pc 50mm Roloc Type Quick Change Polishing Disc set 09550 Pack of 5 discs plus 1 x holder Designed for surface polishing and finishing these discs provide a great final finish and can be used with polished and rouges on metal. Cotton and synthetic felt type material helps discs obtain a fine finish when used in conjunction with a polish or compound. Features & Specs Max speed: 15,000 rpm Material synthetic felt. Roloc: thread type for quick attachment