Polaroid Black and Silver Round Cat Eye Sunglasses 4146/S/X 。Chic round sunglasses with sleek black frames. Silver arms add a modern touch. Polaroid Pld 4146/S/X is a Progressive Eligible frame for Women, which is made of Metal & Plastic. Most metal frames are made out of Monel. Monel has a copper and nickel base and is one of most commonly used metals for frame manufacturing. This metal can be corrosion resistant, strong, and easily adjusted. It retains its stability and shape for long periods of time. ----- Acetate is the most common material used for frame manufacturing. It has endless possibilities for color, texture, and patterns. It can even be laminated to create great visual effects, and it can retain a higher luster. Acetate is lightweight, so it is often chosen for its versatility in coloring as well as for its comfort. Acetate is made out of cotton seed fibers and plasticizers. Polaroid Pld 4146/S/X RXSunglasses come with a cleaning cloth and protective carrying case All Sales are final •Sold as Is Condition •No Refunds