Solar Shield® REC 1 52 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 1 clipon is a rectangle shape with lightweight and durable design that fits traditional metal frames. Black frame with driving lenses tint helps improve depth perception and contrast.Scratch-resistant, polarized lenses reduce glare and Gentle Grip® protects glasses. Clear case included.