The 1309 Fine Line Flex Kimblewick`s mouthpiece is made from flexible, food-grade PU, offering a warmer feel in the mouth even at lower temperatures. A concealed metal core ensures break-resistance and security. The anatomically shaped mouthpiece follows the natural line of the horse’s mouth, lying evenly across the tongue and bars while a slight tongue relief reduces pressure. The Kimblewick works similarly to a Pelham but with a milder effect. It is ridden with a single rein, and the leverage varies depending on which ring slot the rein is attached to. The lower the rein position, the stronger the influence on the poll and lower jaw.