1. Specially designed for fat burning, the weight of the ball can be adjusted, with a maximum weight of approximately 400 grams for the double ball. The multi-functional massage ball helps massage body muscle groups. 2. Self-lubricating bearing provides smooth and durable performance, ensuring long-lasting use with consistent rotation and no jamming. 3. Foam sweat-absorbing non-slip handle offers a comfortable and secure grip. 4. Cordless multi-purpose jump rope features an enlarged ball design for added resistance and massage benefits. Suitable for both indoor and outdoor use, allowing versatile workouts with greater freedom of movement. 5. Thickened rope body provides stability during use. Made with wear-resistant PVC material for enhanced durability.