SRANDER Polarized Sports Sunglasses with 5 Interchangeable Lenses plastic frame plastic lens polarized Lens width: 72.5 millimeters Can switch the lenses design,it's easy to switch the lens. 5 Shatterproof Lens:The Main Black lens is Polarized Lenses Against Strong Sunlight, the Other 4 Lens are Colored Sunglasses for Different Environmental Condition.