Short Rope Franz Memory. It is an old training tool and even today we cannot imagine a high quality training without it. The rope is the foundation. The short rope strengthens the grip, wrist and forearm muscles, the biceps muscles, the shoulder girdle muscles and other muscles that are important to constantly train in preparation for OCR races such as Spartan Race, Gladiator, Predator, Ninja Warrios (just to make you successful ), XLETIX Challenge, Muddy Dash, Terrain Races and other currently popular obstacle races. (Obstacle course). You can order an existing construction or a construction that you purchase from us.