The Wilson Snaffle is traditionally used in the driving world, but is also becoming popular for ridden horses. It has four loose rings - two attached to each end of the mouthpiece, with two additional "inside rings". The cheek pieces of the bridle are fitted to the inside rings, while the reins are fitted to the outside two rings. The bits works with a squeezing action on the horse's cheeks rather than on the corners of the mouth. The Wilson Snaffle can give superb control and "turning power" for a hard-pulling horse, while not being overly severe.