【Risk Free After-Sale Service】 All DUCO customers enjoy our 30 Day Money Back Guarantee and Lifetime Breakage Warranty; Return for a full refund if not satisfied for any reason; Even if you somehow manage to break these glasses, simply contact DUCO glasses. Just contact seller by clicking below on our name and then click the ‘ask a question’ button. 【COMPLETE ACCESSORIES AND PREMIUM PACKAGE】 Include Glasses Case with Carabiner, Gift Box, Microfiber Pouch, Microfiber Cleaning Cloth and Polarization Test Card; It is also gift packaged ready, making it a wonderful yet practical gift idea for friends and family. 【Product Dimensions】 Lens Height: 40MM(1.57 inches)--Lens Width: 64MM(2.51 inches)--Temple Length: 135 MM(5.31 inches)--Nose Bridge: 16MM(0.62 inches)--Frame Length: 144MM (5.67 inches). 8177S-5. Classic. AL-MG Frame TAC Lens. 【Al-Mg Metal Alloy Frame】 Lightweight AL-MG alloy design is ideal for cycling, driving, running, fishing, racing, skiing, climbing, and all outdoor activities enthusiasts. At only 25g, you can hardly feel them on your face. 【TAC Polarized Lens】 UV400 Protection Coating blocks 100% of harmful UVA & UVB rays. Visually restores true color, eliminates reflected or scattered light. TAC polarized triacetate lenses are impact and scratch resistant, lightweight and durable!.