MMD004 Stainless steel shanks are 5” from the top of the headstall ring to the point of pull at the rein ring. The barrel design adds more weight to the shanks. With more weight behind the point of balance, this bit has more signal. The mouthpiece is constructed from ¼” square twist cold steel with the outside ridge diameter at 3/8”. This bit also has a leverage effect, making it very versatile with increased signal.