CLASSIC PIECES – K’NEX Education’s Intro to Structures Bridges Set consists of 207 classic pieces, including rods, stems, and connectors. Kids can attach these parts to one another in different ways, allowing them to create a variety of fully functioning bridge models. The snap-fit pieces stick together securely and can be easily reassembled into other creations. REAL-WORLD STRUCTURES – Build 13 fully-functioning replicas of real-life bridges. These models help educate builders about bridge infrastructure by demonstrating key bridge types, such as truss, arch, cantilever, beam, suspension, movable/bascule, and cable-stayed. Building instructions and a teacher’s guide on a CD are included, providing the information needed to build one’s understanding of scientific, technical, and design concepts. CONVENIENT STORAGE –Keep all K’NEX parts in one easy-to-access place. Enjoy hassle-free cleanup and storage, as this building set comes with a convenient portable storage tray with a snap-on lid. VERSATILE – K’NEX Education’s Intro to Structures Bridges Set is designed to enhance kids’ imaginations through the creative assembly of K’NEX pieces. Aside from the 13 bridges they can build, the set can also be used to create buildings, houses, and towers. This toy is ideal for kids from grades 3 to 5, and 2 to 3 people can work on each set., Manufacturer: Basic Fun