i'm looking at getting a prong collar for maggie but i'm confused by the sizing. most of the collars i've seen are only one size, i.e. 14" or 18". do you have to buy a new collar every time the dog grows? right now maggie wears a 14-18" regular collar. can you order a prong collar larger than you need it right now so the dog can grow into it or does a large collar defeat the purpose?
thanks
thanks
