Professional's Choice 7 Shank Dogbone BitProfessional's Choice 7 Shank Dogbone Bit Mouthpiece Width: 5" Bar Width: 3 8" Purchase: 2 1 2" Shank: 4 1 2" Cheek: 8" Features: Copper wrapped dogbone, copper inlay This 7 Shank is 7 long and 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 5 dog bone applies more pressure to the outside of the bars, encouraging more flex and bend