4 PCS Triangular Rotating Magic Beans

4 PCS Triangular Rotating Magic Beans
1. Material: ABS
2. Handshake on both sides with concave and convex particles, the middle module can be moved
3. 4 O-shaped recessed holes, each with a number of round beads
4. Help your baby exercise his hand, eye and grasp ability
5. Size: 10x11 cm
6. Weight: 124 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