BXO1022 Features: * Circle pad * Magnetic pole spacing that ensures deep penetration over a wide area * Ideal for hamstring pulls, muscle spasms or sprains * One concentric circle field +400 gauss * One maxi pad plus four adhesives per package * Magnetic fields: 1 * Gauss: 400 Per magnet Dimensions: * Dimensions: 3.5"" H x 3.5"" W x 0.06"" D