The Junior Polydron set is designed for easy manipulation by young children, featuring super durable polypropylene pieces that fit together effortlessly. With 124 pieces including triangles, squares, axles, figures, spacers, and wheels, children can construct a wide variety of models such as cars, planes, and more. The soft-touch wheels can be easily attached to create cool vehicles, promoting an understanding of mechanics and how things work. This set encourages coordination and movement synchronization as children grab, pull, and push their models. Assembly instructions and model ideas are included in the set, which is suitable for ages 3 and up.