The Swivel is a cheekpiece with loose rings featuring two small half rings on the inside,connected by a vertical rod. The mouthpiece is attached to this rod and swivels up anddown for a gag effect. This cheekpiece can be ridden with one or two reins. The bridlecheekpiece is attached to the upper half-ring and the reins can be attached to the largering or to the lower half-ring. The lower the rein, the greater the leverage effect, thebigger the impact.

The Inno Sense Mullen is astraight bar that slightly bendsforward. This mouthpiece is
fabricated of synthetic material.The bit has a rigid core thatmakes the mullen bar not flexiblebut the material around it stillgives the bit a soft touch.