We have an old 'Be Nice Halter' we have to hunt up and dust off every once in a while. It is a type of 'war bridle'. It hurts when the horse pulls back and releases instantly when the horse comes forward, so it trains the horse to not pull back.
I have not had a serious pull-back horse since I quit training for the public and that was before Tie Blocker Rings came along. I would probably buy one if I had a serious puller now.
But, one of the reasons I do not have halter pullers and breakers is because I use strong rope halters, good nylon lead-ropes with 5 inch 'bull-snaps' and have several un-breakable places to tie that are ALL HIGHER THAN A HORSE'S WITHERS. All of these tie places have a permanent nylon rope with a bull snap, so I can just snap a horse up to any of them and know that it will not break.
Have you ever heard the old saying "Good fences make good neighbors!"?
Well, "Good halters and good lead-ropes make horses with good stable manners!"