There was a Reddit post that these rulers[0] were $80 from a medical supplier when they could be purchased for $6 on eBay, which is an easy explanation why healthcare here is ridiculously priced
In the original post[0] it was $6 for 100 pack too. And someone pointed out that msrp is $70 so it’s not that bad and ebay was probably either a scam or surplus. Most things on reddit is bs for votes or straight up astroturfing.
[0]: https://imgur.com/a/BSPRh