Professional's Choice Bob Avila series San Franciso Shank Port Roller Bit
$113.95
This bit has a wider port with a 1cm roller. The mouthpiece is built on two copper rollers which promotes salivation. The port is curved back for medium palate pressure and a more gradual feel.
Port: 2", Mouth: 5 1/2", Cheek: 7 3/4"