NOTE: 1.All Our lenses have UV protection ,block 100% of UVA, UVB, UVC rays as well as harmful blue light to 400nm. 2.In any of the following situations, please contact customer service immediately. ①The first is: if the package is not received, the customer service will tell you the solution. ②The second is: there are any flaws in the glasses, please feel free to contact customer service to solve the problem until you are satisfied. ③The third is: if you have any opinions about our products, we will listen carefully, and we will give you new products for free after adopting them.