The Robart Pinchless Jointed Bit Long Shank Medium Port is a revolutionary bit designed to eliminate pinching of the tongue or cheeks, ensuring that your horse's mouth stays closed and calm. This greatly reduces tension and stress, allowing your horse to concentrate on learning and performing. Uniquely, either half of the bit can rotate independently, allowing for precise control and the ability to work each side of the horse separately, as in lifting a shoulder or flexing exercises. This bit is ideal for reining horses and working cow horses. The pinchless cheeks design ensures maximum comfort and the stainless steel mouthpiece with copper inlay promotes salivation and increases sensitivity in the mouth.