Klikko Tec - is an extension of, and compatible with the unique Klikko transforming construction system. It also performs amazing instant transformations - an excellent tool for learning concepts in physical science and technology. Easy to construct, simply snap pieces together using the connectors, or join pieces together directly. Basic shapes can be used as the foundations for complex models. The flexible connections fold and turn freely (0-360 degrees) even after construction, allowing transformations from 2D to 3D objects without breaking. Klikko KT-450 contains 450 Klikko Tec pieces (KT-900 pictured)