BEADSMITH-Vintaj: Metal Reliefing Block. This reliefing block has three levels of grit making it great for all your projects. It features three color-coded grit levels for sanding, buffing, and polishing metal. The two heavy grit sides remove paint and patina, the medium grit side lightly reliefs embossed and raised areas, and the finest grit side buffs and polishes. This package contains one 3-3/4x1-1/2x1 inch metal reliefing block.