Currently have these 3 slings which I'm willing to trade. I've already been asked by BalearicMateo but if anyone else is interested...
The top left one is 116cm from loop to release knot. Pouch about 7cm.
Top right is 131cm, pouch is about 9cm.
Bottom is 137cm, pouch about 9.5cm.
All of them are cotton string, 6 strand braid splitting to 3 strand for each "arm" of the pouch. I still have some cotton string left so I can always make some more if the demand outstrips supply