High quality, impact resistant blue light blocking lenses. Get additional protection from eye strain and more comfort while reading from digital screens. Blue light filtering lenses block up to 30% of potentially harmful high-energy light (HEV). 𝓝𝓻𝓮𝓲𝓮 Handmade acetate frames with durable stainless steel hinges 𝓚𝓲𝓿𝓮 • Frame Height: 55mm • Frame Width: 147mm • Medium Fit 𝓛𝓮𝓸𝓸𝓮𝓰𝓲𝓷𝓰 Complimentary case included.