Running Martingales attach to the reins by running the reins through metal loops. The loops connect from the reins to the girth. Running martingales discourage the horse from evading the aids by tossing its head in the air. Running martingales add leverage pressure to the bit when the horse raises his head up high enough to engage the martingale. Running martingales come in all sizes from pony to oversize. We carry black running martingales along with various shades of brown leather to match any tack set. Camelot, Ovation and Nunn Finer are top name brands we carry. Shop our collections of running martingales and ride in style with Equestrian Collections.