EFFECTIVE, NON-INVASIVE PAIN RELIEF: 10 Powerful 3500 Gauss Neodymium Magnets with 99.9% copper. PURE ELEGANT DESIGN: To compliment your style, It's so beautiful nobody would guess its therapeutic QUALITY CONSTRUCTION: 7.4inch(L), 1.2cm(W), Thickness: 2.7mm. lacquer coating to avoid oxidation