Fame Master Enterprise Build Your Own Chambered Nautilus Fossil Model 3D Puzzle for Age 6+ (24 Piece), 3" Fun & educational, this 3D puzzle toy has 24 pieces to create a Chambered Nautilus Fossil Model The highly detailed, completed model is approx. 3 inches and contains 24 removable parts See separate listings to learn about Human Organs & Skeleton, Dinosaurs as well as Animal, Fish & Amphibian anatomy - Cow, Pig, Dog, Horse, Great White Shark, Dolphin, Frog, Beetle, Spider, Crocodile Also under separate listings, learn anatomy of a T-Rex, Triceratops, Stegosaurus, Brachiosaurus, Woolly Mammoth and much more