Unique and stylish, the Earth Wood Moonstone Sunglasses features polarized lenses and eliminates 100% of UVA/UVB light. UV Protection: 100.00%. Hinge Type: spring loaded. Hinge Material: stainless steel. Lens Width: 56mm. Lens Height: 42mm. Frame Width: 140mm. Temple Length: 140mm. Bridge Width: 15mm. Anti-scratch/anti-fog multi-layer TAC polarized lenses. Biodegradable. 100% FDA approved moisture and water resistant.