The port creates relief for the tongue while the barrel joint relieves pinch on the bars, while still allowing for individual lateral aids.
Bomber’s development which offers tongue relief, recommended for those horses that do not settle with the Happy Tongue
A ring cheek piece introduces poll pressure as well as creating leverage on the mouth piece, the 2½ Ring version is the softest out of the 3 or 4 ring alternatives as the ½ ring softens the leverage on the mouthpiece and poll.
Recommended as an alternative to the conventional 3 or 4 ring bit. As the ½ ring lessens the leverage on the poll and mouth piece. A backstrap is recommended