Ultra Violet Protection Coating coating Lens width: 480 millimeters Lens height: 30 millimeters Bridge: 18 millimeters Arm: 130 millimeters Blue light blocking lenses: Block harmful blue light and effectively reduce harmful blue light on mobile screens, electronic games, computers, televisions, and other devices. Relieve problems such as eye fatigue, dryness, blurred vision, and migraines. 1 pairs of presbyopic glasse: you can put a blue light resistant reader anywhere you need to read; multi colored reading glasses can not only be paired with various clothing, but also serve as gifts for friends and family. Adjustable-spring hinge design: Adjustable-spring mirror legs are perfect for small, wide, and oversized face shapes without uncomfortable squeezing and pressure; All-in-one non-slip nose rest to prevent glasses from slipping off. Comfortable to wear: rectangular frame, durable and lightweight, does not put pressure on the nose and is suitable for long wear; high definition lenses that block blue light strike the perfect balance between accurate magnification and true color.