Black balls are the preferred choice for fidget spinners since they give the best spin times.
Best ceramic bearing metal fidget spinner.
Premium metal fidget spinner best metal fidget spinner with stainless steel and precision bearing the premium fidget hand spinner is a tri bar spinner mading with cnc milled stainless steel.
They have stainless steel races outer case and inner ring and ball bearings made from silicon nitride noted as si3n4 or zirconium dioxide noted as zro2.
Hybrid ceramic ball bearings are more expensive than steel.
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The r188 hybrid ceramic ball bearings are the perfect high speed replacement bearing for your do it yourself fidget spinner.
Hybrid ceramic bearings are the best choice for fidget spinners.
It gives you a long spin time and more balance.
There will be no smell on your hands like from those made from copper and brass.
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