r/PharmaRepCollectables

My friend came back from Korea with these. Works awesome on my shoulder pain when playing sports. What ar these??

Hello, I was wondering if anyone here can help me identify what this product is. It seems like a collapsible cup.

Long story short, I was exploring an abandoned infamous sanatorium/mental facility and found this in one of the drawers. I’ve searched online to try to find out its origin or what it is exactly, with no luck.

EDIT seems to be a collapsible cup, I was right. I found a single one on eBay. If anyone knows any other info about it feel free to share