RitFit Speed Jump Rope - Easily Adjustable Skipping Cable Wire - Best for MMA, Boxing & Fitness, Designed to Increase RPMs, Master Double Unders - with RitFit Carry Bag & Spare Screw Kit Super Quality:The durable jump rope wire cable does not kink or tangle like other jump ropes do. It allows for smooth rotation and ensures your jump rope can be used for regular, intense workouts for a lifetime. Easily Adjustable: The cable is 10ft long, and adjustable to be used by people of different heights. Burn Calories Fast:Rope jumping is one of the best cardio and HIIT (High-Intensity Interval Training) workout. Perfect for Double Unders:Durable and solid plastic handles provide for high RPMs with tangle free operation. The rope is also very light, making it easy for beginners to master double and even triple unders. Use It Anytime, Anywhere: Complete with a convenient carry bag so you can take it with you wherever you go. Improve your fitness, endurance and lose weight anywhere you like. After purchase, the speed rope includes an exercise manual to enhance your workout experience and make sure you get the best experience with your skipping rope. Unparalleled customer centered service: We started our business with a goal to create a brand that brings better service and products to anyone who seeks to improve their physical strength. We take time to listen to your stories of using our products and how you work out with confidence to fight for your own fitness.