Fuse Lenses for Ray-Ban RB7021 Matthew (55mm) - Gradient Grey Tint plastic frame interchangeable lens Non-polarized lenses Lens width: 55 millimeters Lens height: 35 millimeters Fuse Gradient Grey Tinted Lenses. Dark Grey at the top and fades to clear. A popular choice for high-end or fashion frames. Grey tint offers true color perception. Non-polarized lenses Completely block harmful UV rays, providing 100% UVA/UVB protection Fuse Force scratch resistant hard coating Light Transmission 21% Custom Made to easily interchange with your current sunglasses.