Herm Sprenger Stainless Steel Prong Collar
It works well. It's easy to remove a pinch if you need to make it smaller. The build quality seems very good, especially considering that it's very reasonably priced. It causes my dog no discomfort while wearing it normally and now she walks right next to me. The prongs can become unhooked so use a backup collar like the dominant dog collar.
on 05/18/2013 by Brad