German martingale (also known as Thiedemann reins) in leather with adjustable overcoat. Attached to the girth by means of an adjustable strap loop with snap hook. The narrow straps of the ring martingale are also adjustable and secured with snap hooks. The leather endings (width 15 mm) of the rubber rein (width 21 mm) are fitted with buckles. The rein has three D-rings sewn into the sides: two on the leather endings and one on the rubber part. The martingale's narrow straps pass through the bit rings and are attached to the reins' D-rings by snap hooks. The German martingale's buckle is made of chrome-plated brass with a beautiful silver sheen. This dressage aid prevents the horse from raising its head too high or too far forward during riding.