Jellyfish puzzle by Cavallini & Co. The Jellyfish puzzle is based on Cavallini's Jellyfish Decorative Paper, a beautifully detailed, colorful scientific chart of images of jellyfish that will challenge any puzzle fan. All puzzles are packaged in a 10-inch-long cardboard tube, with puzzle pieces safely stored in a muslin bag inside. The finished puzzle measures 22 by 28 inches. Any puzzle fan is sure to enjoy these beautiful and challenging designs.