Self Locking & Easy - Adjust the JUMP ROPE within 3 seconds, no tools. You can simply adjust the length according to your height by pressing an elastic button. The upgraded self-locking and screw-free design is convenient for more people, whatever women or men, BEGINNER or PROFESSIONALS.^ More Smooth & Faster - This skipping rope adopts 360 ball bearing system to effectively avoid it from twisting, winding or bending, and it ensures a faster and more stable rotation, giving you a perfect jumping workout.^ Wearable & Durable Speed Rope - The thickened rope is made of steel wires that are coated with wear-resistant PVC pipes, protecting the part that touches the rough floor frequently and avoiding cracking or breaking.^ Non-slip & Lightweight - This jumping rope is constructed with lightweight ergonomic handles, which is good for you to grip it firmly, Anti-slip design can minimize fatigue of your hands and keep your palms dry, making each exercise safer.^ Exercise Anytime - Our jump rope is portable and durable, so you can exercise anytime and anywhere, burn calories, burn fat and build muscle to keep fit. Ideal for workout routine, fitness, crossfit, etc.