Summary

The next spinner.
Bearings R188 from this lot: https://ru.aliexpress.com/item/High-Speed-Metal-bearings-ceramics-balls-for-finger-hand-spinners-Widget-top-Spinning-covers-nuts-Accessories/32821160894.html?spm=a2g0s.9042311.0.0.0zzm1B&af=5zcW&cn=aliexpress&cv=banner&dp=19TZ1MJKbwZiAWn&tp2=5zcW&afref=&aff_platform=aaf&cpt=1519582683874&sk=myUVRJb&aff_trace_key=b7d896bdb07342849afce6fcb825b5fe-1519582683874-08165-myUVRJb&terminal_id=b28c71fc74914d56b233ccbe9f5972de

For weighting simple M8 nuts.