These necklaces are cut into 2 sharks. They are cut from the same coin and interlock perfectly together. They are cut entirely by hand with a jewelers saw. Two 20" thin chains will be sent with this order. However, if you would like different sizes offered below please message us immediately after ordering. We offer various chain sizes from: 18" thin 20" thin 24" thin 20" thick 24" thick Key Chain Adj Black Cord