The PlanToys Wall Ball Game requires advanced concentration and strategic thinking! Use the pullies on the left and right sides of the board to move the yellow ball to the top without letting it drops. Children can create difficulty levels by creating obstacles with rubber bands or drawing in hurdles and monsters that they must avoid with chalk on the chalk-friendly surface. The center hole can be either an easy finish line or an obstacle at the advanced level. When finished playing, store the pieces in the provided wooden platform.