part of a snaffle, as it controls the severity of the bit. Thinner mouthpieces are more severe, as are those that are rough (not smooth).

* Jointed mouthpiece: applies pressure to the tongue, lips, and bars with a "nutcracker" action. This is the most common mouthpiece found on a snaffle.
* Straight mouthpiece: A straight bar with no curve. Several bit designs use a straight bar where the bit can be flipped over, thus using either the smooth bar side or a twisted bar. The Liverpool bit