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. The mouthpiece is made of ½” sweet iron and has three equal breaks. This allows for tongue relief, while intensifying the pressure on the outside of the bars.
- Mouth: 5 1/4″
- Rings: 2 1/2″
*Please Note- This item may drop ship from the manufacturer. Please allow 3-5 additional business days for shipping
