Key Features The Eggbutt Loose Ring prevents pinching of the lips and gives a more solid feel against the side of the face. It prevents the bit being pulled through the mouth. The Loose Ring allows quick release and no poll pressure. The Buster Roller link is shortened which increases bar and tongue pressure making this mouthpiece sharper than conventional link bits. The increased pressure on the bar will lift the head and the roller will increase pressure on the tongue bringing the chin in. Best suited for a horse with a low head carriage and which leans on the bit. Cheekpiece The cheekpiece is available in 2 sizes, standard and a slightly smaller model for a pony. Mouthpiece Available in a ported version called the McHardy.