A massage ball set typically includes a variety of balls in different sizes and densities designed for targeted muscle relief. These balls can be made of materials like rubber, silicone, or foam and may have textured surfaces for enhanced massage effectiveness. The set allows users to apply pressure to specific muscle groups, releasing tension, improving circulation, and promoting relaxation. Commonly used for self-massage, these versatile tools offer relief from muscle soreness, tightness, and discomfort. They're popular among athletes, fitness enthusiasts, and individuals seeking therapeutic benefits from the comfort of their own home.