Myler 04 Long Shank Combination Bit with Twist (5-Inch) Level 2 Independent Side Movement.Also an excellent schooling bit for horses competing in dressage. From The Level Best for Your Horse by Dale, Ron and Bob Myler. Toklat Originals, Inc. Patented swivel purchase moves independently of both the mouthpiece and shank so that it doesnt dig into the horses cheek when neck reining Rawhide noseband.Suitable for a wide range of horses: green horses, experienced horses entering the Myler System, horses that have been ridden exclusively in a single-jointed mouthpiece, or re-schooling horses that have not been ridden for a while. Degree of leverage is mild