Chanel Silver Tone / Pint Gradient 4242 Pantos Round Sunglasses, This pair of Sunglasses are Contemporary with a Vintage Flair, They are crafted from acetate and silver tone metal and feature chain detailing around the lenses, the optional chain link suspends from the temples. I originally had the lenses taken out to use as prescription glasses as a back up pair. The lenses can be put back on. Never used the chain link. And comes with its case.