Shires Soft Lunging Aid - Black. The soft lunge aid works on the bars and corners of the mouth. When the horse raises its head, pressure is applied to its mouth and bars encouraging the head to lower. Encourages a longer, lower outline and allows the horse to stretch though his back without fixing the head. Can be particularly useful for horses that feel restricted in other types of training aids. Attaches to the bit with swivel trigger clips where the rope can be shortened and lengthened.