Plastic lens Scratch Resistant Coating coating Polarized lens + UV 400 protection - Clubmaster polarized lens can block 100% of harmful UVA and UVB rays, filter out the glare reflected by the sun, make the field of vision clearer, and protect your eyes from harm. PREMIUM MATERIAL - Sturdy metal frame, soft and anti-skid nose pads, scratch-resistant polarized lens, all these details ensure long lasting wear and comfort! DESIGN STYLE - These retro half frames are classic and timeless. The stylish retro design is an ideal choice for you. PRODUCT SIZE - Lens Width: 50mm, Lens Height: 45 mm, Nose Width: 22mm, Frame Width: 145mm, Leg Length: 140mm. Manual measurement, error in 1-3mm.