This super cute, awesome jelly-fish is made with a real sea urchin. The sea urchin is covered with epoxy and filled to make it strong. With white wire the jelly fishes are completed and will be swimming around your house or hanging on your Christmas tree! The urchins are 1 3/4'' (4.5 cm. The jelly fishes are including the wires 5'' (12.5 cm) and can be hung on the loop at the top. More can be made if needed.