10mm Wide Bark Copper Cuff Bracelet By John Brana Handmade Jewelry 100% Uncoated Solid Copper Cuff Offered in 6-1/2-inch, 7-inch, 7-1/2-inch, 8-inch, and 8-1/2-inch size circumferences. 1/2 inch width (10mm - 6 stacked US Quarters) . Choose size from Drop Down menu above. 100% UNCOATED SOLID COPPER - Allow to Patina for an Organic Antiqued Look. Use Ketchup or any Copper Cleaner to keep bright and shiny. HANDMADE IN THE USA. Handmade personally by award-winning jewelry designer John S Brana in his San Francisco jewelry studio. LIFETIME GUARANTEE. John S Brana Designer Jewelry will inspect, clean, polish and maintain your jewelry for free for as long as you own it. SIZING: For proper fit, measure the length around your wrist and add 1/2 inch. If your wrist measures 7 inches in length, order a size 7 1/2.