Sprenger dynamic RS single jointed eggbutt pony bit 14mm

Amazon

Ergonomic shape ensures even pressure distribution on the tongue, joint tilted 45° forward Anatomically correct between tongue and palatine arch, allows effective assistance To promote a trusting approach Also ideal for sensitive horses or horses with fleshy tongue Direct transfer of the reins aid to the tongue and lower jaw thanks to fixed side panel - quiet position in the horse's mouth, gentle on the mouth angle, with additional lateral limitation

Hypostore

The Sprenger Dynamic bits are known for their hinges which are rotated 45 degrees forward to ensure an even distribution of pressure over both tongue sides.  Dynamic RS bits are recommended for horses that are overactive in the mouth, play too much with the tongue and therefore do not respond to signals from the double jointed bits.