The Buddy Lee Hyperformance Rope Master Jump Rope represents the latest in innovation of all jump ropes and no matter what fitness level you are at, it will motivate you to want to jump It is designed with a swivel bearing system that is technically engineered for eliminating friction, drag, tangling and allows smooth turning action in all directions. It is designed with an advanced swivel bearing system for high intensity jump rope training and makes jumping easy, effortless and fun. The 9-Inch long handles are designed for both children and adults for easy execution of basic and advanced jumping skills for the serious adult or youth athlete/fitness buff. It has an innovative adjustment system that allows you to shorten and customize the rope for your height in seconds. The swivel-bearing wrench is specifically designed to secure and easily replace the swivel bearings to maintain years of Hyperformance jumping. The aerodynamic rope cord is made of PVC and can easily be replaceable like the swivel bearings. Adjustable for people 6-Feet 9-Inch and under. Due to the new technology of this rope please see complete sizing, adjustment and rope care instructions inside the rope card.