Choose from gold vermeil, a thick layer of 18K gold over sterling silver; or 18K gold over brass Adjustable chain length: 16 to 18 inches; 40 + 2.5 + 2.5 cms Chain only — charms sold separately Dental Surgery, Demi Fine Jewelry, Rolo Chain, Medical Professionals, Sterling Silver Charm, Cable Chain, Chain Lengths, Jewelry Care, Chain Length