It is normal for the gyroscope to make a sound when it rotates. It is recommended that you place it on a horizontal surface or rotate it vertically. Try to avoid tilting it when you place it on your hand. It is normal for it to shake slightly when your hand is unstable.Please do not wash it with water, because the rotating ball in the bearing will have resistance when it touches water, affecting the rotation speed.
This gyroscope is processed by CNC precision machine tools through more than a dozen processes. It is made of pure copper and has a golden luster on the surface. It is very gorgeous when it rotates.
Product size: 6.1*2.2*0.5cm
Rotation system: imported ceramic bearings
Material: all copper, the price is very high now, so the cost is higher, and the quality is first-class.
Weight: 130g (including packaging)
Packaging: round iron box