ABOUT THIS ARTICLE5 Interchangeable Lenses: BangLong polarized sunglasses with 5 interchangeable lenses. All sunglasses 100% UV400 protection coating, block 100% harmful UVA and UVB rays, protect eyes perfectly.TR 90 material frame: BangLong polarized sunglasses use Grilamid frames. Grilamid frames are well known for their amazing strength, lightweight comfort, form integrity, and impact resistance. Dimensions: Lens Height: 48mm; leg length: 145mm; Nose Bridge: 20mm; frame length: 150mmTransparent, super light, elegant and durable: modern and elegant design, with rich color combinations of frames and lenses. The lightweight design of our sunglasses is ideal for motorcycle and cycling, driving, jogging, fishing, racing, skiing, climbing, hiking or other outdoor activities.Detachable Inner Frame: The polarized sunglasses are specially designed for myopic sports enthusiasts, the smooth surface makes you feel comfortable, allowing you to fully enjoy yourself in any sports. Much smoother than having the normal plastic frame that stays rigid on your nose.