Product Features Point 1｜Full Body Training to Enhance Masculinity: With the cordless battle rope, you can simultaneously train your upper body, core, and legs. It effectively strengthens the muscles in your arms, shoulders, back, and abdomen. Point 2｜Powerful Rebound & High-Precision Spring: The built-in 300g weighted spring provides continuous high-speed vibrations, continuously contracting your core muscles centrifugally. It effectively stimulates the biceps, triceps, and forearms. Point 3｜Non-Slip Coating Handle: The scientifically designed handle is easy to grip, wear-resistant, and allows for safe training. Even beginners can operate it smoothly. Point 4｜Excellent Durability & Portability: The thick weighted spring and thick steel pipe are resistant to deformation and feature a high-pressure design. Full-body training is possible anywhere, indoors or outdoors. Point 5｜Quiet Operation & Unisex: The quiet design reduces noise, making it safe for use in apartments. It's unisex and can be used in a wide range of settings, including home, office, and outdoors. Brief Description This is a multi-functional training gear that efficiently trains your full-body strength, endurance, and core, enhancing masculinity. The quiet design allows for indoor use. Product Specifications ・Length: 50cm (set of 2) ・Weight: Approximately 900g ・Thickness: Diameter 3.5cm ・Materials: Steel, thick steel pipe, built-in weighted spring ・Color: Black ・Target: Unisex How to Use Hold the cordless battle rope with both hands and swing it up and down, in waves, or in cross motions to stimulate the muscles of your upper body, abs, and legs. Beginners can operate it smoothly. Uses ・Strength training indoors ・Endurance and physical fitness enhancement outdoors ・Strengthening abdominal, back, arm, and shoulder muscles ・Building a masculine physique, improving fitness ・Ideal for home gyms and home training Summary This is a multi-functional training gear that efficiently trains your full-body strength and core. The quiet design allows for safe use indoors, and it's unisex, making it widely applicable at home and outdoors. Please specify the color in the comments. If there are no comments, the color will be random.