Professional's Choice O Ring

This O-ring is made out of 5/16 diameter material. 2 7/8 outside diameter against the extra weight in the compactness of the ring allows for a more stable feel and quick release. Smooth, two-piece snaffle has a slight curve to the bars allowing the bit to rest comfortably across your horses entire mouth. This mouthpiece is considered to be mild. Mouth: 5 1/4 Rings: 2 1/2