Snaffle Bit with Brass Elliptical Link 14mm
The elliptical joint is an oval shaped link in center of the mouthpiece, which is movable and rolls around the stainless steel center.
The two joints allow the pressure of the bit is distributed over both the tongue and bars of the mouth and it shouldn't cause any interference with the roof of the mouth. The link uses tongue pressure to encourage the the horse to go on the bit and lower the head.
The brass material stimulates salivation which in turn encourage a softer mouth.