The Nunn Finer Gag Hanger converts any bit into a Gag bit. Simply slide the gag hanger under the crown, just like a bradoon hanger, and attach the other gag cheek. Once attached, simply pull the rope and ring through the cheekpiece of any ringed bit and attach the rein to the ring. It can be used with a single rein or with double reins (recommended) with one rein attached to the bit ring and the other attached to the gag hanger ring. The gag is a great training tool for teaching strong horses to come back without having to "bit up", and this gag hanger eliminates the need to purchase a special gag bit (which can save you a lot of money if you ride multiple horses!).