Designed and Patented by 5-Time World Jump Rope Champion Molly Metz Perfect for CrossFit athletes looking to perfect Double Unders Dual-Bearing Handle Technology provides a near-frictionless jumping experience One size fits all: cable length easily adjusted on-the-fly Lightweight, Ultra-durable handles will never break or shatter Designed and patented by 5-Time World Jump Rope Champion, Molly Metz, the R1.5 Hybrid Speed Rope has blown CrossFitters away with its perfectly-balanced cable selection and dual-bearing speed handle technology. This rope has been in development for over a year at JumpNrope, being tested for a perfect blend of flexibility, weight, and durability. It is now considered the most preferred speed rope for over 80% of CrossFit athletes and continues to be the ñGO TOî rope for CrossFit athletes, coaches, and gym owners around the world! The rigidity and weight of the cable, along with the patented friction-free handle technology make this rope perfect for CrossFit workouts! Though designed for indoor use, the R1 Speed Ropes' nylon cable coating provides superb durability to abrasion. The R1 comes with 11 feet of cable with sizing instructions and the cable length can easily be adjusted with a flat-head screwdriver. The handles are made of a light-weight, ultra-durable nylon, the patented bearing system makes them virtually friction-free, and the pivoting eye allows for ANY angle of hand motion, making this rope feel effortless at times. Designed, Tested, Patented by World Jump Rope Champions- The R1 Speed Rope is one to trust!