Each rattleback has a mind of its own…
Some spin only clockwise, others only counter-clockwise. If you try to spin it the other way, it wobbles and starts spinning in the original direction!
Wood: birdseye maple
Dimensions: About 20 cm (8 in)
Spinning direction: Counter-clockwise
Birdseye maple is a beautiful wood that occurs naturally in less than 0.1% of all sugar maple trees. Therefore, It has a high scarcity value.
Its name aptly describes the "eyes" that develop in the tree.