The String Running Martingale is made of tan 1/4 inch nylon cord. The rings and swivel snap are stainless steel. The safety hobble strap goes thru the gullet of the saddle and over the horn to prevent the neckstrap from sliding to the ears. This martingale is adjustable both around the neck and to the cinch.
The running martingale is a very useful tool to aid a horse in learning proper head position as he learns collection. If adjusted correctly a martingale does not force the head to stay in any given position but allows the horse a guide for head placement through automatic release of pressure on the reins when correct head placement is achieved. This can make it easier for a horse to reach a more collected frame over time by allowing assistance with head position as rider teaches the horse to drive from behind.