Description Features NightFall Premium Blue Light Blocking Glasses These are the world's most advanced blue and green light blocking with true red lenses designed for after dark use. They block 100% of blue and green light from 380-550nm, making them the most powerful glasses on the market. NightFall Premium Blue Light Blocking Glasses are true to their purpose using a dark and stylish frame that has a wrap-around fit to minimise leakage of unfiltered light. Plus, they feature high-quality padding on the inside to ensure a comfortable fit. Lightweight & True To Purpose, Dark & Stylish Frame Nocturnal Red Lenses utilise unique technology to filter out all wavelengths that interfere with melatonin production, maximising your sleep quality, performance, and health. These blue light blocking glasses are made for people who are serious about improving their sleep and want the best possible product to do the job! It's true that you can use these to read, watch TV, or work on your computer, tablet, or phone without having to commit to living in the dark, these glasses let you use technolgy but mitiagte the harmful effects of them. Plus, your sleep hormones can shift to night mode to ensure a deep and restful sleep. 100% blue light and green light from 380-550nm is blocked Wrap around design, eliminating any "light leakage" - this is essential in maximising melatonin production Full coverage foam barrier border Lightweight and waterproof polycarbonate frame Flexible and adjustable arms UV, glare and scratch-resistant lenses Hard-shell glasses case Dimensions: Lens Width: 65mm Lens Height: 37mm Arms Length: 125 mm Nose Pad Space: 20 mm