Three different textures (fine, medium, coarse) for varying types of surfaces. Each texture is sold as a 2-pack, and the base is sold separately. These pads fit the Shurhold Swivel Pad Base, pads are 4.5″ x 10″. Fine: white pad for light teak cleaning, scrubbing non-skid surfaces and other durable surfaces Medium: blue pad for general teak cleaning Coarse: brown pad for heavy duty teak cleaning and bottom paint preparation