Solar Shield® REC 4 48 ClipOns easily attach to your prescription eyeglasses or readers for convenient polarized sun-protection. Solar Shield® clipon sunglasses offer 100% UVA-UVB lens protection. REC 4 clipon is a rectangle shape with lightweight and durable design that fits traditional metal frames. Black frame and blue lenses are perfect for everyday use. Scratch-resistant, polarized lenses reduce glare and Gentle Grip® protects glasses. Clear case included.