Not sure where else to ask - amazing panties and cage, anyone have info on where to buy them?

So I was looking at some videos for research purposes... (seriously!), and I found this video with probably the best looking panties I've ever come across. Anyone have info on these panties that have a sleeve (with an opening!) plus an opening in the back? And that cage looks amazing, any info? I've been searching for everything with no luck. Please help!!

https://xhamster.com/videos/fake-girl-various-sexual-props-and-posture-teaching-to-help-you-achieve-orgasm-xhWtNSk