JewelryVolt Copper Bangle Cuff Therapy Bracelet Chain Link Design Increase Energy One Size Fits All. Width: 12mm. Enclosure: Open End Copper Cuffs Bracelet Helps Relieve Fatigue Increases Energy Naturally This High Quality Copper bracelet is not being sold as a medical device & not intended to diagnose, treat, cure or prevent any disease. Search for "Jewelry Volt Bracelets" for more bracelets from Jewelry Volt.