Ideal for removing orange peel from painted surfaces, and polishing metal, wood and plastic. Sheets measure 3 x 4" (7.6 x 10.1cm) for large working surface and extended life. Color coded back print makes for easy grit identification. Can be used wet or dry, for best results a light mist of water containing a drop of dish detergent for lubrication is recommended. A double density 2 x 3" (5 x 7.6cm) back up pad is also included.