Metal frame Tri Acetate Cellulose lens Polarized Mirror Coating coating Lens width: 45 millimeters Lens height: 45 millimeters ✔ENJOY SUNSHINE & KEEP YOUR HEALTHY STYLE: These round sunglasses come with top rated POLARIZED LENSES that we tested over time. Polarization can reduce glare reflected off of roads, bodies of water, snow, and other horizontal surfaces. Restore true color, eliminate reflected light and scattered light. Meanwhile, UV400 protection coating blocks 100% harmful UVA & UVB rays. Whether you are driving, fishing or having a nice sunbath on the beach, JUST RELAX YOURSELF. CGID E01 John Lennon Round Polarized Unisex Sunglasses - BBQZUZDGN