Designed and made exclusively by London Mole. Our classic round glasses admired the world over by fashion conscious aficionados. Our blue blocker glasses are designed to help reduce the risk of harmful blue light from screens and artificial light sources. They can help prevent eyestrain, headaches and other symptoms of digital eye strain, and improve sleep quality. Wear them working on a laptop or computer, gaming, watching tv, or scrolling through your phone to look and feel good. They are also a stylish fashion accessory. Great quality, excellent value, durable and comfortable. Polycarbonate frame with sprung hinges. Acrylic lens with UV400, scratch resistant coating and anti-bluelight coating with blue light protection factor BLPF 30%. Frame width 140mm | Lens size 36 x 42 mm | Bridge gap size 18 mm | Temple size 145 mm