Details 3M Roloc Disc 777F features 3M-engineered high performing ceramic abrasive grain blended with aluminum oxide for a combination of durability and cutting efficiency that increases productivity for both stock removal and finishing. The heavy, water-resistant polyester backing supports medium-pressure applications, a consistent cut-rate and both wet and dry applications. Brand:3M |Diameter:2 Inch |Grit Size Number:120 |Type:TR Plastic Button |Smalley