Van Hargis Transition Series #5 1/2" Sweet Iron High Port 8" Swivel Cheek 5" Mouth
This medium high port bit is very useful in the training process. Still on a swivel shank, it affords a horse a slight amount of pre-signal before the bit actually signals the horse.  The higher port first offers a lot of tongue relief although the port can apply palate pressure to the horse that does not yet have a good headset.  The solid mouthpiece stabilizes the shoulders and is the final prep bit before transitioning into a full bridle.