Fidget Spinner - Heaviest design for maximum angular momentum
Custom machined aluminum body from 6061 aluminum
Tungsten Alloy counterweights - 22 mm diameter, 7 mm thickness (17 gm/cm^3 density) . These are not tungsten carbide, but tungsten alloy - heavier
R188 Hybrid ceramic bearing for maximum spin time - individually selected out of large batches for best performance
R188 to 608 adapter (bearings easily interchangeable)
Stainless steel center bearing caps
Custom laser etched / marked word / name on spinner (x3 same around perimeter), or any text (smaller font) around hub
Total weight 186gm
Spin time recorded at 12+ minutes - guaranteed
Certificate with actual spin time of unit provided
NOTE: Always spin with engraved logo facing up when testing for spin time