The Fine Line Flex 3-Ring Bit`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 3-ring cheekpiece allows for varying degrees of leverage depending on rein placement, transferring pressure not only to the mouth but also lightly to the poll.