These sets are very pretty, very lightweight, hypoallergenic, and sturdy. I've put some of mine through the washer on more than one occasion and they've survived intact. Alpaca Silver is an alloy. It has NO silver content at all. Rather it is a combination of copper, zinc, and lead. There may be some nickel as well but I'm not 100% sure of this. These sets average between 18 and 21 inches long. Earrings average 2 to 3 inches long. What I love most about this jewelry is that it is the large look without all the weight. It is also versatile - wear it with jeans, or to the office. I know you'll be pleased with your purchase, but if for any reason you're not, simply return it for a full refund. Please see my policies page for more info. I do combine and I ship to many places. Please take a look at my other listings. Feel free to ask questions and thanks for looking!