1pcs Self-balancing Gyroscope Anti-gravity Decompression Educational Toy Finger Gyroscope Best Gift For Kid
$62.09
$76.37
It just not good enough to show the gyro effect. The rotational mass is not big enough when comparing to the unrotating mass. So it keeps balanced rotation on the base about 20-25 seconds (I expected more). It also almost can’t stay horizontal on the drawstring. Before adding the included oil it gave even worth preformance. However, it was well packaged, and sent very fast (that kind of good packaging in for small products is rare). The bottle with the oil not labeled at all and can be hazardous because of that.
