This is our standard style Keeper Hidden Prong collar. It features a snap buckle and adjustable tug so that the collar can be custom fit to your dog and so that the collar will stay high on the dog's neck without being too tight.
You can see that there are no prongs in the middle of the collar. This is by design. The reason that we leave a gap in the prongs is to protect the dog’s trachea (wind pipe). Normal leash corrections should never cause any injury but if the dog should suddenly lunge against the lead, this gap will help prevent injury to that tender area.