Hello, I often see people with containers and jars with measuring strips inside. I see this the most often with fish like in this Youtuber’s (AVNJ) content where he caught a Slimy Sculpin and in iNaturalist observations themselves!
(Image: A snippet from AVNJ’s video on Slimy Sculpin range)
But no matter how hard I search, high and low, googling every key word I possibly can think if, I CANNOT find anything of the sort sold online! (Google only gives me urine analysis cups and strangely jars for keeping your afterbirth? Not at all what I need!)
Mind you, I live in Canada so any Amazon.com links or similar US-based stores unfortunately don’t often ship to me, so I’m looking for a Canadian source.
I’m considering DIY-ing something similar for general use, so any good sources of info on that would be great!