Wide Silver Tone Aluminum Bark Cuff Bracelet By John S Brana Handmade Jewelry Hypoallergenic Offered in 6-1/2-inch, 7-inch, 7-1/2-inch, 8-inch and 8-1/2-inch sizes circumference, 1 3/4 inches (45mm) wide. Choose size from Drop Down menu above. MAINTENANCE-FREE AND HYPOALLERGENIC. Aluminum is free from lead and nickel, making it great for those that suffer from metal allergies. 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.