In the category of specialty curb bits, there is a particular type of arrangement that has been referred to as a Banbury or Revolver Curb. This type of bit has slotted cheeks, which allows the mouthpiece to rotate, and thus each side of the bit can be worked independently. It also makes the mouthpiece more mobile, thus keeping the horse’s mouth more dynamic. In theory, the independent control of each cheek can help correct horses who tend to be one-sided or tilt their heads.