The product is a genuine Ray-Ban RB3016 replacement lens in grey/gradient with anti-reflective coating. Made of glass with a 51mm width, these lenses offer UV400 protection and are designed for men's sunglasses. The square style is classic and timeless, perfect for adding a touch of luxury to your eyewear. Made in Italy, these lenses are a stylish and practical choice for replacing worn-out or damaged lenses on your Ray-Ban sunglasses.