3D printed resin / nylon full belt

Came across these on eBay (no affiliation, just a curious potential customer). Searched here and didn't find any obvious discussion; if they've been reviewed or discussed before, kindly point me in the right direction? Otherwise, anyone have any experience with these? For ~$100 for the resin one I'm tempted to give it a try...

https://www.ebay.com/sch/i.html?_nk...n+sissy+chastity+belt&_sacat=0&LH_TitleDesc=0

There's also the "panty cage" if you scroll down past the first dozen results or so, that looks potentially interesting, too...