The Korsteel Double Twisted Wire Full Cheek Snaffle Bit has two single jointed twisted wire mouth pieces with the center joint set at different places. When pressure is applied to this bit, it will dig into the bars of the mouth and lips and can also pinch the tongue and corners of the mouth. It can be useful in teaching horses to give and respond to an extremely light aid. This bit should be used only by a very experience rider with a very soft, educated hand. It will cut the horse's mouth if used incorrectly and could cause the horse to panic if too much pressure is applied.