This sanding block is ideal for resurfacing and paint removal to final finishing and creating artistic effects. This can be used wet or dry for desired effect; the medium/coarse grit of this block can sand down imperfections in bisque-ware or smooth wood projects.Details:Black2.75" x 1" x 4" (7cm x 2.6cm x 10.2cm)150 medium/coarse grit8 sanding blocksPolyurethane foam constructionCoated with long-lasting gritFits comfortably in your hand