Senchoice Men's Sports Style Polarized Sunglasses Driver Glasses Unbreakable Frame aluminium frame plastic lens polarized Lens width: 68 millimeters Lens height: 50 millimeters Bridge: 13 millimeters Arm: 132 millimeters 100% UV400 Protection Lens,Blocks 100% Harmful UVA,UVB & UVC Rays Spring assisted hinge make these sunglasses comfortable to wear, even for larger face. Polarized Lenses Eliminate Glare And Reduce Eye Fatigue Polarized Triacetate Lenses Are Impact And Scratch Resistant, Lightweight And Durable Lightweight AL-MG Alloy Design Is Ideal For Usage By Motorcycle And Cycling Bicycle, Driving, Running, Lightweight metal frame: 20 grams approximately for the whole glasses.