Does anyone use them, can anyone recommend or advise avoidance with certain brands or methods?
Someone mentioned one the other day on here and for the life of me I can't find it. I think we could do with something for Billypup when she's having a reactive '2 paws up' at you moment and disappears. They do seem very expensive, are they worth it?
I am now probably 95% confident in her recall, the problem is the other 5% she goes from perfect puppy to a complete disappearing act.