Trust Sweet Iron D-Ring Dr. Bristol BitWe love this bit because the double jointed construction is comfortable in the horse's mouth while the Dr. Bristol piece offers a little extra control for stronger horses. This jaw piece has a D shape. The D rings ensure that the mouthpiece lies calmly and stably in the mouth. The pressure of the D against the cheek makes steering easier because the head is automatically pushed in the right direction. This makes the bit suitable for young horses, for