3M 35519 2-3/4" x 5" Rubber Sanding Block For use with 3M Wetordry and dry 9 in. x 11 in. sanding sheets for block sanding Pliable rubber block for mild contours Eliminates highlights in work from finger pressure Pliable rubber block for mild contoursEliminates highlights in work from finger pressureDesigned to hold sandpaper sheets securely during wet or dry sanding operations2-3/4 in. x 5 in. block utilizes a 9 in. x 11 in. sheet torn or folded into fourths to make 2-3/4 in. x 9 in. sheets or for convenience use 3M pre-cut 2-3/4 in. x 9 in. sheets