Please note: Amazon / Ebay / Poshmark sales are prohibited. Lenses 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 ). Frame Handmade acetate frames with durable stainless steel hinges Size Frame Height: 47mm Frame Width: 140mm Medium Fit Packaging Complimentary case included.