Constructed with a fabric face, foam center, and a grip backing combining benefits of abrasive cloth and non-woven productsOpenings in the fabric allow water, solvent and air to flow freely around the abrasiveFoam center provides for even surface pressure that helps eliminate "finger marks" when hand sandingWorks especially well when sanding contoured surfaces, corners and sharp edgesOpen cell design holds large amounts of water or solvent for lubrication and cooling