ONE ION Original Series Power Bracelets &minus; Classic Collection A combination of 316L stainless steel focal plate, medical grade silicone (2,000 ions/cc), and samarium cobalt magnets Securely fastened with a strudy tang buckle Length: 6.3"- 8.3" (Adjustable). Width: 0.6" Comes with a presentable bracelet box. Satisfaction guaranteed! Best gift for you or the special one made easy! Buy with confidence! Join our happily energized customers!