1. Any color can make accordingly, eg, brown, blk, wht, demi...
2. Logo printing/laser is available
3. All the sunglass we offer have CE certificate and FDA certificate

Product description:
Functions/Features:
1. The glass helps to relax the eyeball muscle, and adjust eye focus.
2. Theory is very simple: When the eyes can only look through the small holes, they naturally         
chanfge to a relaxing standerd, so that the eyeballs are relieved from the previous nervous facus.
3. you can fell the relaxation once you wear it and afterwards.
4. good and simple eye relaxation for a large population whose job cause tired eyes: Studen, Teacher, White collar, computer users and so on .
5. Age: From child to aged people, etc.