Our Labrador, almost 40 kilos, is very wild and strong. In the dog school and while walking we train with a towline. I always thought that was terrible when Carlos starts running on a leash and a tear through the hands. It burns and hurts and makes training really an ordeal. I could never understand that some people let their dogs play with the towline. Until I the K9 in hand had the first time! She is rubberized on both sides, so the jerking and tearing anything in the hands brennt.Man, unlike the simple linen a very good grip, you can without problems can also quickly slip through your fingers. All in all, a really great part, I really can only recommend. The acquisition is worthwhile in any case, your hands will thank you :-)