Features:1. Blue Light Blocker & Replaceable Lens Reduce symptoms of eyestrain during prolonged computer exposure. These frames are best used as indoor lenses for long hours of computer use to maintain natural sleep patterns and eye protection. The original lenses can be replaced with your prescription lenses at any store.2. High-quality Materials These blue light blocking glasses are made of reinforced metal frames, soft silicone nose pads, and durable metal hinges, all the details ensuring you a perfect performance. The soft silicone nose pads can adapt to different nose shapes. Reduce the burden on your bridge of the nose and create a new sense of fashion.3. Comfortable Wearing Lightweight and durable. These stylish blue light blocking glasses fit well both for small faces and big heads because of adjustable temples and nose guards. You can wear our glasses for long periods in front of digital screens or your upcoming trip out of town.Glasses Dimension:Frame Width: 141 mm (5.6 inch)Lens Width: 53 mm (2.1 inch)Lens Height: 47 mm (1.9 inch)Nose Bridge Width: 19 mm (0.7 inch)Temples Length: 142 mm (5.6 inch)Weight: 25g (0.9oz)Package Included: 1 * Unisex Blue Light Blocking GlassesNote:1. There is 2-3% difference according to manual measurement. Please check the size carefully before you buy the item.2. Please note that slight color difference should be acceptable due to the light and screen.3. If you need more, please contact us and we will give you a discount.