The uniqueness of this leather fork martingale is designed to be used with a single or double training rein. The position of the button slot on the rein allows the rider to adjust the german styled martingale to help ride collection and balance in the horse. The equipment will help promote athletic carriage by helping the horse to round in the back while elevating at the wither and poll. Caution should be taken to not encourage flexion, which allows the horse to tuck his nose behind the vertical.