I also do not know exactly why, but this blue line is the star in the playground and everyone wants to play with my daughter so and ask where we had the great part of her. It is well made, robust with Rueckenverschluss (the one but it can also leave open - and for some reason is called our 6 year old the as salient criterion) and somehow more flexible and softer than the leather leash with which my daughter had never played. I still have bells on a leash sewn and the kids are really happy, so simple as that, come to me almost like Supermom!