Severe bit with pulley/lever action. Runners form cheek pieces and reins attach to runner rings.
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. Most commonly seen in polo, eventing (especially for cross-country), show jumping, and hacking, mainly for increased control at times where a horse may be excited or try to run off with the rider.
Gags can be used with two different rein configurations:
One rein can be used – your main rein is connected to the ring on the end of the runner.
Two reins can be used – your main rein is connected to the large bit ring, and a 2nd rein connected to the ring on the end of the runner. Split/gag reins can also be used
Larger rings prevent bit sliding through the mouth.