The Shaped Mullen Mouth Short Shank Pelham Bit from Happy Mouth Bits® features a mouthpiece covered with a soft, flexible, yet extremely durable, apple-scented plastic. This material encourages bit acceptance and softness. It has an inner core of twisted wire for more flexibility. Stainless steel cheeks.The bit design offers multiple functions, including the action of a snaffle, the action of a curb, and the ability to use a variety of rein attachments. The shape of the mouth distributes pressure evenly on the tongue.