Steel Double Bearing Self Locking Fitness Training Skipping Jump RopeSelf locking jump rope is easy to adjust the rope length by the self locking system. No screws will be needed fasten and adjust the rope, and you will never need to cut the rope with a scissor. The handle is made of Aluminum, and coated with silicone, which provides an anti slip and comfortable grip. The handle is made with built in ball bearings, which ensures smooth and fast rotation. The rope is made a coated wire which is extremely durable and