Name: Fingertip Gyroscope.
Hold spinner in one hand and use the other hand to spin it rapidly using small continuous strikes to keep it spinning indefinitely with practice,spinners can be spun using one hand only using the fingers of one hand to stop and start spinning
New bearing pre-rotation speed will not reach the peak, silicon nitride ball bearings need to run, bring their own traffic effect, the more play and more long.
Fingertip gyro is DIY products, each gyroscope in each player will have a different performance, so, more running, more research, more debugging, will cause unexpected results.The bearing can not touch the water, after playing for some time, if you find a significant decline in speed, that is, the bearing into the naked eye can not see the dust, it does not matter, attached to the gyro with alcohol inside The bubble for 15 minutes, the lid can be transferred directly, I wish you a happy play!
Item size: 2.76 IN * 2.76 IN * 0.39 IN
Carton size: 3.54 IN * 3.54 IN * 0.59 IN
Gross Weight: 7.05 OZ
Net weight: 5.29 OZ