Compared to other SMR/ massage balls, the HYPERSPHERE helps to pinpoint and release trigger points faster, deeper, and less painfully using high-intensity vibration. The HYPERSPHERE is portable and only 3"inch in diameter, which helps to release tension in targeted areas better than any roller. Three high-intensity vibration settings Can be used to activate, soothe, or loosen muscles/fascia in the: feet, calves, hamstrings, gluteus, hip flexors, shoulders, back, and forearms The Hypersphere's high-intensity vibration allows you to release tension and targeted areas deeper than a foam roller Dual exterior (silicone grip texture plus dense shell) for optimal sheering