I had to buy this slip lead because dog kept chewing his fabric slip lead if sitting & bored eg if I stopped to speak to someone, and therefore I needed to clip a chain lead to attach to a slip lead collar. I am used to Slip leads and use them correctly and effectively without harm to dog. I found this slip lead collar does not loosen easily after tweaking to check the dog, even if I shake it down, so I have to loosen it manually which is a nuisance. It is also quite thin and sturdy, more like wire which I didn’t like. The idea of a collar is good, just wrong fabric, thickness and weights design.