Star bangle/bracelet: classic bangle, with star charms placed at intervals around on printed rings. Print in place, no assembly required, but does need some supports for the stars; I recommend removing supports carefully with clippers as links are a little fragile in PLA. 

6cm/60mm inside diameter, matching my other bangle files; https://makerworld.com/en/models/2379529-bangles#profileId-2605487