 However, the mechanical hackamore is also unrelated to a true hackamore except to the extent that both are headgear that control a horse with some form of noseband rather than a bit in the horse's mouth.Because the mechanical hackamore uses shanks and leverage, it is not a true hackamore, but rather works similarly to a curb bit.The shanks and curb chain serve to increase pressure on the nose, jaw, and poll

The mechanical hackamore may be a relatively modern invention.