Professional's Choice Bob Avila Signature Shank Medium Copper Port Bit Mouthpiece:Medium Copper Port The GT4 is also much

The GT4 is also much more durable than any conventional three-strand

resulting in fewer ruptured pulmonary blood vessels

Gamechanger Plus HA helps the body reduce inflammation and aid the quality of  lubrication properties in the joints

faster feel than a polygrass

Professional's Choice Bob Avila Signature Shank Medium Copper Port Bit Mouthpiece:Medium Copper Port The GT4 is also muchThis bit features a solid mouthpiece that works off bar and palate pressure. The mouthpiece is thicker than most, and the port offers a great deal of tongue relief. Good for working with older, more mature horses. Copper mouthpiece keeps the horse's mouth moist. This bit requires light contact. Port: 1 1 2", Mouth: 5", Cheek: 7 1 4"