Eggbutt Cheek Function With Hooks:
Leverage action- 
This biit has leverage action when the reins are used through the hooks.  When pressure is exerted on the reins, the mouthpiece rolls downward and backward in the mouth and pressure is applied to the poll via the headstall.  
When rein is released, keeps mouthpiece upright, instead of resting on the tongue.  
Allows the rider to use less pressure than traditional ring bits.  
Very encouraging for horse to relax at the poll.  Side eggbutt will not pull through the mouth and does not pinch.  
(Can be used with a curb chain)
33MB Mouthpiece