Certain bits are commonly used in certain horse activities. For example, western style riding usually uses a curb bit. English style usually uses a type of snaffle, although certain horses may be put in a different type of bit. Saddleseat riding and high levels of dressage riding use a double bridle. This is a bridle that holds 2 bits. Each bit works a little differently so the rider can cue the horse to do different things. The rider must ride with 2 reins in each hand. This requires the rider to be skilled so they can handle both reins without confusing the horse.