Bombers 3 Ring Petros EllipticalA Ring cheek piece introduces poll pressure as well creating leverage on the mouthpiece. The 3 Ring is our most popular version. The Elliptical is a 45 mm lozenge, it is stronger than the Control Plate due to it having a smaller surface area. Consequently, a horse using his tongue as a means of pushing against the bit and therefore taking control, will draw back and tuck his chin in, coming back to a better point of control. The Petros mouthpieces