WODFitters Competition Grade Speed Jump Rope - Blazing Fast for RX WOD - Great for Boxing, MMA, Martial Arts, Men, Women and Children Our Competition Grade R-1 Jump Ropes! Ultrafast dual-bearing, pivoting-eye technology - Several WORLD RECORDS have been shattered by jumpers who have used the technology of this rope. This rope is perfect for jumpers who are looking to achieve double unders or triple unders. The patented bearing system in the handles makes them virtually friction-free, and the pivoting eye allows for ANY angle of hand motion, making this rope feel effortless at times. The cable is made of a durable nylon-coated steel, and the handles are made of a ultra-durable nylon, making this rope suitable for indoor use. The additional weight provided by the nylon coating gives the jumper a little bit more feel to the rope, and gives more rhythmic stability to jumping.