Happy Mouth(R) Jointed Mouth Pelham Bit Pelhams are a type of curb bit that uses two reins; a curb and a snaffle. The shank provides curb action and there is a curb chain. They are often seen in hunters, jumpers, eventing, and equitation. The unique Apple scent encourages horses to accept the bit and the space age polymer provides for a gentler bit for a happier horse.