Product parametersMaterial: Aluminum alloy shell with Stainless steel beadsProduct size: 2.61*2.61*0.61Net weight: 30gGross weight: 60gHow to use:Hold spinner in one hand and use the other hand to spin it rapidly, using small continuous strikes to keep it spinning indefinitely, practice spinners can be spun using one hand, only using the fingers of one hand to stop and start spinning. These are perfect pocket pieces for people wanting something small, simple, discrete and fun-also effective for focus, stress relief and deep thought.Note:1. Please allows 0.1-0.2 inches error as manual measurement.2. There is a gap between the steel balls, cuz the increasing centrifugal force by sliding could make the spinner keep balance. Slow speed will make noise, but don't worry, when the spin speed is fast the spinner will keep quiet.
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