Rod-Lock Box

This is a puzzle game designed to train children's spatial imagination. Players must carefully observe the relationship between the two boxes and the three cylindrical rods of different diameters as they intersect in order to successfully complete the game. How to play: First, remove all the rods and separate the two boxes. Observe the distribution of the holes on the rods and boxes, compare the different diameters of the rods, and find the positions of the holes that match the rods. Then, try to reassemble the boxes. You might not succeed on your first try; don't worry, try a few more times. Patiently discover the rules of the game to fully appreciate its wonder.