product description 1. Skipping rope is suitable for HIIT workout/interval training/cross fitness/boxing/to increase weight loss, stamina and stamina. The jump rope exercise will work your shoulders, hips, entire back, hamstrings, triceps and forearms 2. Heavy Duty Jump Rope - Designed with premium materials, the weighted jump rope comes with a pair of comfortable ergonomic non-slip handles to ensure efficient training. This provides top-notch handlingsoft, comfortable, natural and sweat-resistant. Weighted skipping ropes are easy to use and have a system to adjust the length to your liking 3. Ready-to-use weighted skipping ropes for most people - weighted skipping ropes spin more slowly than regular skipping ropes due to the weight. Slow rotations provide proper jump timing and help improve your upright posture, allowing your entire back and shoulder muscles to properly engage in the arc. Our women's weighted jump ropes are suitable for beginners and experts for most ages 4. Power your upper body, especially your shoulders - Weighting the jump rope requires and develops upper body strength in order to continue to rotate the rope for continuous jumps, so your entire back, shoulder and forearm muscles are engaged with each rotation. The shoulder muscles are responsible for the control of the entire movement and strengthen the shoulder muscles regardless of your physical condition