Set contains over 440 K’NEX pieces to build 35 unique models. °Build 35 different models including a space ship, motorcycle, trumpet and more! °Comes in a treasure chest style package to store all K’NEX parts, or partially and fully built models. °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.