It looks like it would fit loosely on a wrist. Not stretchy material but it can be tightened/adjusted.
this post was submitted on 18 Mar 2026
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What is this thing?
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Looks like a pretty shitty prusik loop. Usually used in climbing or other ropes applications. A good prusik would be of a better rope quality and the knots would be more robust but same principle. More likely a summer camp bracelet of some kind.
more like a fisherman's knot. When you pull on it, they will hold tighter
https://en.wikipedia.org/wiki/Fisherman%27s_knot
Yes, except that it appears to be a double fisherman's, like your example picture from Wikipedia. It's hard to tell, though, tbh.
fisherman's knot always look like that till you tug on the line/rope to lock it tight.
up there in the loop they just used it keep the size adjustable
Just for those of you that don’t know what’s a Prusik loop