Riders may use both hands when a horse is ridden with a snaffle bit or a bosal hackamore. However, snaffles and hackamores ridden with both hands are usually limited only to special classes for horses between the ages of three and five years old. Most of the time, with the exception of "freestyle" classes, snaffle bit and hackamore horses do not compete directly against curb bit horses, though specific details vary depending on the particular sanctioning organization. In the last thirty years, the snaffle bit is the more common headgear used on younger horses, but in the past, the hackamore was more common. Some local or regional competitions offer a non-sanctioned "novice horse" division where horses of any age who have limited experience as reining horses can be ridden two-handed in a snaffle.