The Morgan CFFSR is designed for intermediate & advanced users, with two comfortable gripped handles & ball bearing attachments for smooth operation. Fully adjustable up to 3m, it features a 2.5mm thick steel wire encased in a thin layer of nylon that makes it durable and capable of handling tough concrete surfaces. It cuts through the air quickly for maximum speed & offers an ideal solution for Cross-Functional Fitness workouts, both indoors & out. It's perfect for mastering those double unders.