The Loose Ring Bradoon allows for immediate release and relief from tongue and bar pressure which will reset the bit in the horses mouth.
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.