Ideal for fidgety hands, sufferers helps relieve stress
Perfectly sized for adults and children over the age of 10
Easy to carry, small and simple, discreet and fun, also effective for the focus and thinking deep
Performance Medium 1-3 minutes as a handheld bag or an over table top, based on the power you use to rotate. High stablity, you can upgrade on the pen.
Use of this way: Hold the screwdriver in one hand and use the other hand to make it run fast using small strikes continues to hold filer indefinitely with practice, the filateurs can only be filés with one hand by using the fingers of one hand to stop and start, and hand spinning