"Good Dog" Collar Sizes?

[areias]

That's a good dog (plastic prong). I suppose if you can add links you should be able to take them off? I could get a metal one, but I'm curious as to how these work.

[JenBKR]

That's a good dog (plastic prong). I suppose if you can add links you should be able to take them off? I could get a metal one, but I'm curious as to how these work.

hmm never saw those before, they look interesting..may have to look into that. I would imagine you'd be able to take links out...I hope someone else can be more helpful!