Fidget Spinner - Heaviest design for maximum angular momentum
Body - Custom machined from solid brass
Tungsten Alloy counterweights - 22 mm diameter, 7 mm thickness (17 gm/cm^3 density) . These are not tungsten carbide, but tungsten alloy - heavier - 45.5 gm each
R188 Stainless 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
Total weight 245 gm
Spin time recorded at 13+ minutes - guaranteed
Certificate with actual spin time of unit provided
NOTE: Always spin with engraved logo facing up when testing for spin time