Horses and bits

Gag

Most common in the Jumper/Polo disciplines

With two sets of reins, the gag bit gives a rider the ability to use either a standard direct action or a gag action. The gag bit works on the horse's lips and poll simultaneously. The pressure on the lips tends to make the horse raise its head, which is useful for a horse that tends to lean on the bit. Gag bits are used mainly for horses that are strong pullers or for horses that need retraining.