Stretch Plastics How Do You Widen (stretch)plastic Sunglasses To Fit A Bit Looser Around Back Of Ears?

How do you widen (stretch)plastic sunglasses to fit a bit looser around back of ears? - stretch plastics

When the glasses of the good in the air, the heat is. I have plastic. I suppose if you went to a kiosk in the eye are probably for you.