Scotch-Brite(TM) Clean and Finish Sheet, 1 in x 1 1/2 in F SFN, 500 per case Flexible, web for finishing, blending, and polishing. Conformability allows access to hard-to-reach areas. May be used manually, with a hand block or on in-line sander. Abrasive mineral: Aluminum Silicate. Color: White