ThinOptics Brooklyns are the world's thinnest and lightest full-frame reading glasses. Weighing less than 9g, they are are beautifully thin, durable and lightweight. Brooklyns fit in a brushed aluminum, felt-lined 4mm thick case that fits so effortlessly into a pocket, purse or handbag, you may forget they're with you. The optical grade polycarbonate used in ThinOptics reading glasses is the same material that is regularly found in high-end prescription eyeglasses. The lenses are made by one of the largest and most advanced optical lens manufacturers in the world. The frame is created from medical device materials, like nitinol, the super-elastic metal alloy used for heart stents. The keychain that amazes comes in four different powers from +1.00 to +2.50. Convenient: Reading glasses at your fingertips Quality: Premium metal case, soft brushed finish Compact: Slips easily into your wallet, purse or pocket ThinOptics Brooklyn reading glasses are easy to carry to ensure your glasses are 'Always With You.' Total frame width: 134mm Bridge width: 17.5mm Lens width: 55mm Lens height: 33mm Side length: 134mm Thickness: 3mm
