The Eggbutt cheek piece prevents pinching of the lips and gives a solid feel against the side of the face. It also prevents the bit being pulled through the mouth. The release is slower than the loose ring and also introduces light poll pressure.
The Elliptical Dressage Control spreads pressure over the tongue. The mouth pieces are curved Comfy to soften the bar pressure. The mouth pieces and lozenge are ground flat to distribute the pressure evenly over tongue and bars, which together with the offset links further reduce pressure points. Allowing for a more accepted and relaxed contact, the horse will draw its head back and tuck its chin in, finding a better balance of control.