3M 05527 Roloc Surface Conditiong Disc TR, Diameter: 2-Inch, NH A MED, Maroon Specifications: Non-woven abrasive; Medium Coarsness; Diameter: 2-Inch; MaxRPM: 25,000; Color: MaroonDesigned forcleaning, finishing, blending and deburring applicationsDesigned for usewith disc sanders. Load resistantThreaded Rolocattachment system secures the disc to the disc sander holder.