This kind of gadget with a symmetrical structure of 4 bearings that can spin on the fingers has slowly become popular in North America since the beginning of 2016. Why is this thing so hot? Don't look at things simply, as long as you hold the spindle with a light stroke, it can rotate at a high speed and continue to rotate. Once you get started, you can't stop it. Many people think that this product can help them quit smoking, ADHD, obsessive-compulsive disorder, anxiety, post-traumatic stress disorder, meditation and boredom, and can provide users with a calming effect.
Please pay attention to the size of the product before buying Children under 3 years old are not allowed to play