Professional's Choice Bob Avila's Santa Maria Port with Roller Bit

This bit carries a wider port with a 1cm roller. The mouthpiece is built on two copper rollers which keep a horse's mouth light and soft. The port is curved back for medium palate pressure and a more gradual feel. Port: 2", Mouth: 5", Shank length: 7 1/2" Mouth 5"  Puchase 3" Shank length: 7 1/2" Port Height 2" Port Width 1" This bit carries a wider port with a 1cm roller. The mouthpiece is built on two copper rollers which keep a horse's mouth light and soft. The port is curved back for medium palate pressure and a more gradual feel.