Nickel Free (no green or itchy skin). Made in panama. Includes 1 year warranty. Reputable seller. Gold-filled (layered) , with real gold outer core & brass only inner core. Gold filled is higher quality, than electroplated jewlery which has weak base metal, that repels its weak coating. This is made from gold-filled wire. Thicker crust = longevity. Don’t let anyone fool you , stainless steel jewelry is poorer quality & can turn sometimes in days, due to molecular resistance of metals. I’ve been a seller of 5 years , well known ; store coming soon. Can ship here 2-3 days, meet or through my site mgl.gold In comparison pure (24k) gold right now is $50/gram & in jewelry form $60/gram . So 18k (75% pure) would be $45/gram. So 10 grams alone would cost you $450. This is why I sell gold-filled, because most people don't want to pay these prices. Be careful with some of these jewelers copying my marketing . Especially a seller selling plated silver claiming its Gold filled. Plated silver is called Vermeil and it doesn’t have longevity and when it changes you would be stuck without warranty with a piece not worth anything unless you remove plating which labor would cost more than chain . Beware I’ve been doing this long enough to know value . Don’t be fooled .