The device is placed on the horse's head so that the pressure points at the poll and under the upper lip are affected. Once the device is in position, the rope is tightened using the pulleys and can be fixed in place allowing for one person usage. The pressure created at these two points distracts the horse's attention. The Stableizer utilizes these points because they are acupressure points. Pressure at these sites encourages endorphin release by the horse's brain.
Endorphins are the natural sedatives of the body, and have a calming effect on the horse.
Usually within 45-60 seconds after application of the Stableizer, the horse begins to calm. Once calm, the horse easily can be controlled and led with the Stableizer or a shank. This non-abrasive restraint system was designed to make horses calm and manageable while they are being clipped, loaded, shod, vaccinated, bred, etc. The Stableizer was designed so that one person might operate it effectively. The mechanism of action is reported to be the same as with other twitches.