Professional's Choice 7 Shank Floating Port Twisted Bars BitThe 7 Shank has quite a bit of weight behind the mouthpiece, which allows a quick release from the riders hands This is an excellent transition bit out of an O ring or D ring The square port is more aggressive than the traditional rounded port because you are working off the corners of the mouth The twisted bar pieces are more aggressive 5 1 8" Mouth 6 1 2" Cheek 1 1 2" Port SKU: PCB 1049