Trust Sweet Iron Hackamore Combination Short Medium Port BitWe love this bit the hackamore gives a lot of control over stronger horses and the medium ported mouthpiece gives extra room in the horse's mouth. This jaw piece is a combination of a hackamore with a bit. The hackamore combi is a jaw piece with leverage and gives pressure on the nose, chin, and mouth. The longer the shanks of the hackamore, the stronger the effect. This combination with short shanks has a less sharp effect than the long hackamore