1. Improves the capacity and thinking ability.
2. Easy installation and DIY without special tools.
3. Help you relieve stress, keeps you engaged, prevents from getting bored, relaxes your head, develops patience and intelligence.
This product is designed to help people to obtain physical and mental health, enhance their own logic analysis ability, and quick thinking in the form of exercising player’s brain, eyes, hands.
36 * magnetic bars/magnetic rods
27 * steel balls