A modular construction game that engages children's creativity. Stix hides a magical secret: the kneecap! By combining the half-spheres and the silicone tubes, children obtain a ball joint which allows them to freely orient and stabilize the constructions with the wooden planks! The silicone parts adhere to the wooden boards and allow endless possibilities. Made from wood that comes from eco-managed forests (FSC) and the cones are made of non-toxic, food grade silicone. 60 pieces. Ages 3 and up.