Stainless steel frame Mirrored lens Polarized Lens width: 51 millimeters UV400 PROTECTION FOR YOUR EYES – SojoS's anti-reflective sunglasses with HD 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 THIN FRAME – This SojoS polarized round sunglasses is made of ultra-thin stainless steel materials, so the frame is super light, but very strong. Its weight is only 40 grams(0.09 pounds), so you will feel very comfortable and there will be no pressure on your nose. PERFECT ALL ROUNDER – This SojoS sunglasses is the perfect choice for outdoor sports and activities such as shopping, driving, walking, travelling, and is suitable as high fashion accessory and daily wear all year round. It is also gift packaged ready, making it a wonderful yet practical gift idea for friends and family!