The action of this bridle differs fundamentally from all other bitless bridles (the hackamores, bosals, and sidepulls). By means of a simple but subtle system of two loops, one over the poll and one over the nose, the bridle embraces the whole of the head. It can be thought of as providing the rider with a benevolent headlock on the horse (See illustration). Unlike the bit method of control, the Bitless Bridle is compatible with the physiological needs of the horse at exercise. First and foremost, it does not injure or frighten the horse, but neither does it interfere, as does the bit, with the horse's ability to breathe and stride freely.