This anatomically correct bit rests equally and gently on the horse's tongue, offering room for the horse to move its tongue. When you pull the reins, the bit applies pressure evenly on the tongue, which means that it doesn't pinch the lips. The shape of the bit allows it to comfortably sit in the horse's mouth for a mild experience. It allows the rider to communicate with the horse in a gentle way. The bit is made of plastic and is smooth. It can slide easily into the horse's mouth, even if the horse doesn't produce a lot of salivae. It is perfect for young horses or sensitive horses.