These Basketball necklaces fit together perfectly like a puzzle. They are great for couples and best friends. All of our coins are cut by hand with a small coping saw. We do not use cutting machines of any kind. The inside details of the balls are engraved deeply into the coin. 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