BUILT-IN DUAL BEARINGS 360 FREE ROTATION: With Dual speed bearing design, the handle rotations are truly consistent and smooth. This skipping rope allows you to jump at a fast speed smoothly and freely without the exercise ropes getting tangled and twisted. It gives you more control and also reduces the chance for you to trip over. ADJUSTABLE JUMP ROPE FOR ADULTS AND KIDS: The jumping rope for an exercise is designed with 9.8 feet long of the exercise jump rope, it has a spare rope to adjust to length with a screwdriver for a taller person. Not only adults but also children can play it. Perfect exercise skipping rope for men, women, kids, girls, or youth. BUILT-IN STEEL WIRE DURABLE AND BREAK-PROOF: The workout jump rope is made of steel wire rope which is coated with silicon material giving it extra protection. It features durability, endurability, and fluentness, eliminates tangling and coiling, and allows you to jump on different flat surfaces. Perfect adult jump rope for weight loss and workout equipment for women and men. NONE-SLIP HANDLE FOR SAFER JUMPINGThe handles of our speed jump rope workout are made out of aluminum and are very substantial. The hollow aluminum design is lightweight and firm, giving you an excellent grip for better movement. It also lowers the pressure on your arm when you skip.