The top will make a sound when it rotates, which is normal. It is recommended that you place it on a horizontal surface or rotate it vertically, and try to avoid tilting it when you put it on your hand. It is normal for it to shake slightly when your hand is unstable. Please be careful not to wash it with water, because the ball in the bearing will have resistance when it touches the water, which will affect the speed.
This gyroscope is processed by more than ten processes using CNC precision machine tools. It is made of imported 420 steel and has an anodized surface that will never fade.
Product size: 6.4*2.4*1.6cm
Rotating system: imported ceramic bearings
Material: all brass, the price is very high now, so The cost is higher, but the quality is first-class
Weight: grams (including packaging)
Packaging: Round iron box