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 fine/medium grit of this block is ideal for detailing and for softer materials.Details:Black2.75" x 1" x 4" (7cm x 2.6cm x 10.2cm)300 Fine/Medium GritPolyurethane foam constructionCoated with long-lasting gritFits comfortably in your hand