The Hexagonal Screw Set is a unique basic skill educational board that allows children to learn their way into the independent solving of real-world challenges. It helps children (over 4 years old) learn the practical life skill of using a screwdriver, working with various tools, and holding the keys correctly, while training hand-eye coordination and developing their fine motor skills. Your child can safely practice the action of removing and re-inserting the 4 screws while improving their recognition ability and sensory activity.