FUSE Lenses Sapphire Mirror Polarized for Costa Del Mar Hammerhead plastic frame interchangeable lens Polarized lenses Lens width: 65 millimeters Lens height: 39 millimeters Sapphire Mirror Polarized is an all metal mirror coated version of our grey polarized lens. Fuse's glare reducing metal coatings offer a cool spin on the superior protective qualities of our lenses. Polarized. Completely block harmful UV rays, providing 100% UVA/UVB protection. Constructed from the highest quality polycarbonate material for the ultimate in safe and clear eyewear. Polarized lenses that offer unsurpassed glare reduction for maximum wearer comfort. Custom Made to easily interchange with your current sunglasses.