1. Material: plastic 2. Help your baby exercise his hand, eye and grasp ability 3. Simultaneous training of brain spatial imagination 4. Pinch the tops of both ends with your fingers, you can also make a fingertip spinning top 5. 4 O-shaped recessed holes, each with 8 round beads 6. Size: 6x6 cm 7. Weight: 68 grams
How to play: 1. Randomly scramble the small balls 2. Move the middle horizontal axis to replace the required ball in the middle of the O-shaped groove 3. Through memory and space imagination, the beads in the 4 grooves are matched at the fastest speed
