Please note that this item is final sale and cannot be returned or exchanged. Parafina is a transformative lifestyle brand with a lofty objective: to offer designer eyewear in eco-friendly materials at an affordable price. Constructed from durable, lightweight frame material, SENA Reading Glasses by Parafina are fashionable, functional and sophisticated. Features: Ultra-light and comfortable Lenses filter blue light emitted from digital screens such as smartphones, laptops, tablets and TVs Eco-friendly frame material made of 100% recycled HDPE plastic Comes in a range of colours to suit all styles and personalities Unisex Blue Light Filtering Lenses: On average, we spend 50 hours a week on smartphones and tablets, in front of computer screens and TV screens or playing video games. All these screens emit so-called blue light (rays emitted between 400 and 460nm). Parafina Reading Glasses are equipped with innovative lenses that filter out blue light emitted by our screens, resulting in a gentler daily experience in front of the screen, less eye strain and protection for your eyes. Sizing: Lens Width (mm) Bridge (mm) Arm Length (mm) 43 25 148