HIGH-DEFINITION UV400 TAC POLARIZED LENSES – SojoS's HD TAC polarized lenses can filter out sunlight reflected glare, and protect your eyes from long-term damage by blocking 100% of harmful UVA and UVB rays. ULTRA-LIGHT AND ULTRA-THIN FRAMES – These SojoS retro square sunglasses are made of ultra-thin metal materials, so the frames are super light but very strong. These weights are only 40 grams(0.09 pounds), so you will feel very comfortable and no pressure on your nose. PERFECT ALL ROUNDER – These SojoS sunglasses are the perfect choice for outdoor sports and activities such as taking selfies, shopping, driving, traveling, and are suitable as a high fashion accessory and daily wear all year round. PRODUCT DIMENSION – Lens Width: 51mm(2.01inches) | Lens Height: 45mm(1.77inches) | Temple Length: 147mm(5.79inches) | Nose Bridge: 20mm(0.79inches).