3/8" wide - Copper-SILVER-GOLD - FOUR MAGNET: This Copper Magnetic Sports Band is plated with three metal strips on the exterior of Copper,Silver and Gold, for a beautiful jewelry look. Embedded with four 1700 gauss magnets built in and you have a very powerful magnetic cuff style bracelet for a very affordable price. Why not be one of the many active people who wear a magnetic wristband today? Looking for that extra edge in your game - go ahead and try the pro's secret and order your 4 Mag Tri color GSG 4 mag today! Used by top athletes worldwide. Now with all copper interior for the dual approach of copper and magnets all wrapped up in one stylish bracelet. Comes packaged and ready for gift wrapping@ factory direct pricing to you from AceMagnetics.com (Copper interior will turn wrist a slight green color - this is the copper oxidizing into your skin and is supposed to happen - FYI) If this bothers you consider a stainless steel or titanium bracelet which will not turn your wrist a slight green.