15kg dog snapped the clasp off
Not a very good quality item. My 15kg puppy (who was probably not even that weight at the time) sprinted to the end of the line and the rope came away from the clasp.
Luckily she wasn't hurt when she escaped (and considering how close we live to a road I shudder to think how easily she could have been killed), but how useless is a long line that can't be used to train an easily distracted dog on recall?
Maybe useful with smaller, toy dogs but would not use for a working breed.