Please refer to the 5th photo on the left for instructions on how to change the lens. UV Cut: Gieadun polarized sunglasses are made of very good materials, safe and impact resistant, and are ultra-light, transparent, elastic, stable and impact resistant. harmful UV rays (UVA and UVB) cut and reflect sunlight, reduce eye burden and ensure a comfortable field of view Polarized lenses* 1 Yellow lenses* 1 Color * 1 , bag * 1 , glass wipes * 1, Polarization test card * 1