Collar thickness of two or three layers of leather with metal spikes put in ready to Wolf dogs or Sheepdogs in the neck to fend off the wolves bite. Apropos of Wolf dogs is told in ready a story: once all the dogs Wolf met with the idea of ending all the wolves in the region. Already almost had decided it in the Assembly, when an old dog gets up and tells them: but you know well what you're deciding?. If no wolves would be what would we?. And then they decided to leave things as they were. And this is how they are now, thanks to the wise decision of Wolf dogs.