Contains 750 classic K'NEX pieces to build 52 different models. °Build 52 different models including a pirate ship, robot, car and more! °Iconic, reusable storage case inspired by the design of the K'NEX carrying case from the early 1990s. °Set comes with an easy-to-follow instruction manual. Ideal for kids 7 and up. °STEAMagination - It's the connection of STEAM (science, technology, engineering, arts, & math) with a child's curiosity and creativity. It powers the fun of each K'NEX set. °K'NEX supports the developmental growth of hand-eye coordination, fine motor skills, problem-solving skills, & spatial awareness. Packaging may vary.