As see on Taylor Swift This is an original exclusive EB and Co. design They are hypoallergenic, PVD plated, stainless steel based Ring is adjustable We believe fashion should be low maintenance. That’s why most pieces at EB and Co. require very little upkeep – just wear and love. To keep your pieces looking like new, we suggest taking off your jewelry before swimming, sweating, showering or exercising. Your EB and Co. items should also avoid contact with perfumes, lotions or hair products because tarnishing may occur. Tarnishing can also be caused by the skin’s natural pH levels. In this case, we are not responsible for the refund or exchange of your items.