This Tortoise is Sterling Silver, The included chain is a Sterling Silver Figaro 50 chain. You may chose 16, 18 or 20 inch at the same price. Other length available at sightly higher prices. The Tortoise pendant measures 2 1/4" long by 11/16" across. I hand cast all my pieces using the lost wax casting method. Please ask your needs. You may call me with questions, often I am out so please use my machine. 831-476-3176. Satisfaction Guaranteed! I send items USPS First Class unless otherwise directed. I send as soon as I can, usually in one to five days. I do shows & am out of the shop quite a bit. When I list an item, it is made & ready to sell. If it is sold before you order I will let you know & you have the choice of giving me the time to make another or to refund your money if you don’t want to wait. I want satisfied people wearing my jewelry. Pete’s Mold #2842 sterling Silver Tortoise Pendant On A Chain