You have a choice in chains: Silver Plate, and Sterling Silver. The Silver Plate is 17'' inches long, with a 2'' extender chain. The Sterling Silver is not adjustable, so it falls right at the sweet spot! The Antler Charm stays Silver Plate. There is a Solid Sterling Silver available as well. It is also available in Gold Plate, and 14K Gold.By far my number one seller - you certainly will not regret this purchase!