Toysmith Mysterious Rattleback

Physics and its laws act in ways that can surprise you. This Toysmith Mysterious Rattleback will definitely amaze your children with the way it behaves. This toy has two rattlebacks that spin continuously if you spin it counter-clockwise, but stop and rattle dramatically if you spin it clockwise.Your children can spin these rattlebacks around in different directions and discover how they rattle and spin. With this Toysmith Mysterious Rattleback, your children can make an attempt to understand the physics behind the way these rattlebacks behave.  It is great fun to watch how these rattlebacks react to the tapping and the spins. This mysterious toy set is ideal for children aged 8 years and above.