This is a high-quality photochromic polarized sunglasses. The lenses change quickly and can adapt to different environments. The frame material is made of aviation aluminum-magnesium alloy, which is durable and does not fade. The lens has photochromic, polarized, UV400 and other functions, which can be applied to a variety of occasions, and can protect the eyes well from harmful light. About size Frame width: 148mm / 5.83in Lens width: 68mm / 2.68in Lens height: 40mm / 1.57in Bridge width: 13mm / 0.52in Temple length: 135mm / 5.31in You can get: Sunglasses * 1, Boutique glasses box* 1, Glasses cloth * 1, Glasses bag * 1, Polarization test card * 1