O - here is my attempt at describing it - lol be prepared i'm not much good at it lol lol
Its min part is a normal webbing collar (normal nylong collar), this is fitted higher on the neck (behind the ears), than your would normally for a flat collar. Over the normal collar is a longer thinner strip of webbing which clips behing the head and is where you attatch your lead to. At the front of the collar under thedogs chin, you pull the smaller strip up and over the dogs nose and adjust to fit with a toggle. Now when your dog pulls, hs head is lowered and he has to look down, which stops him in his tracks. It also breaks his line of sight with whatever he has seen that is interesting - giving you yet another bit of time for getting his attention on you rather than the bunny/cat/dog/carrier bag lol.
ore pics to come and videos. I think they cost around £12-15ish, so not terribly cheap but worth every penny!!!!