Vintage Persol 830 sunglasses feature a beautiful tobacco vanille shell frame that it seems only the Italians can do properly, combined with the fine optical quality inherent in original Persol brown mineral glass lenses. These Persol Ratti 830 sunglasses incorporate the Meflecto system unique to vintage Persols, 4 metal pins which are inserted vertically into the ear stems and provide unparalleled flexibility in the stems for perfect comfort and fit. The unisex Persol 830 sunglasses frame measures approximately 5.5" temple to temple, and the lenses measure approximately 2.0" x 1.375" at the widest points with both lenses laser etched with the round Persol mark in the upper outside corners. You'll find the distinctive silver metal Persol arrow on the exterior of both ear stems wrapping around the temple, and the inside of one stem is marked Persol 830 54 [] 18 while the inside of the other stem is marked 137 66 Persol Italy. Original Persol Ratti lenses with Persol logos on the internal sides, see the photos 9, 11. With the patented Meflecto system that fits the wearer's head perfectly. With generic or recycled case all my the pre owned sunglasses are cleaned and sanitized using ultrasounds machine