Reinforces the turning aid and helps with straightness and direction. Excellent for directional control. Good for faster work as the mouthpiece will not slide across the mouth when turning, also good for young horses as it will not pull through in a panic situation. The 14 mm (8022) normally offers extra lift from the shoulder and takes up less room in the mouth than thicker mouthpieces. The upper cheeks may be fixed to the cheek pieces with Fulmer Loops to exert gentle poll pressure (head lowering). We would not recommend fixing with young horses as we would lose the play factor which is desirable for mouthing purposes.