● metal ● Imported ● Every model in the Ray-Ban collection is the product of meticulous, original styling that translates the best of the latest fashion trends into an ever-contemporary look for millions of Ray-Ban wearers around the world. ● Ray-Ban sizes refer to the width of one lens in millimeters. ● Ray-Ban products sold by authorized sellers, like Amazon.com, are eligible for all manufacturer warranties and guarantees. ● Protective case included, cases come in a variety of colors. ● Lenses are prescription-ready (Rx-able). ● Ray-Ban products include an etched "RB" on the left lens. The RB is not a scratch or defect. ● The shape and curvature of these sunglasses may need adjustments. Adjustments should only be made by a professional. ● Made in Italy or China.