Batman Fidget Spinner (20mm)

thingiverse

The Batman spinner was a fantastic concept, and it definitely caught my attention - except for the fact that I had 669zz bearings on hand. These bearings measure approximately 20mm in diameter, which is noticeably smaller than the more widely used 608zz bearings, measuring at 22mm in diameter. Hopefully, this information proves useful to someone else, saving them from having to figure it out on their own.