One of the most popular shanks for training when leaving the ring snaffle and great for introducing some curb pressure. Mouthpiece bends over the bars at a greater angle than a solid or two-piece mouthpiece, allowing contact to new nerves for better control. The copper roller can help calm a nervous horse and add some light tongue pressure for a better headset.
Stage B is all about transition, with the introduction of leverage and curb pressure. Short shanked bits and half-gags comprise Stage B.