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Basically, fidget spinners work thanks to nifty low-friction ... Gravity Probe B "had four gyros that were set spinning in as frictionless a setting as possible," Ash said in a text message.
(The actual spin time will be affected by age and strength of users) 【High-Quality Materials】The fidget spinner use Stainless steel bearing, SLA technology, laser industrial molding technology.
It's called the fidget spinner. SEE ALSO: Channel all of your nervous energy into this Fidget Cube The latest distraction tactic sweeping the globe is said to encourage focus and provide an outlet ...