Crucible Men's Titanium Dual Black Striped Carbon Fiber Inlay Ring - Sizes 7-13 Band dimensions: 8 mm wide x 2 mm thick. Metal weight: 4 grams. Lightweight and 100-percent hypoallergenic, titanium will never tarnish. Titanium may scratch when struck Limited lifetime warranty, see product description GIFT POUCH INCLUDED: Comes ready for gifting. 100% SATISFACTION GUARANTEED: Shop with confidence. West Coast Jewelry has been a trusted seller for over 10 years and is dedicated to excellent customer satisfaction.