Hyperice Hypersphere Vibration Therapy Massage Ball for Crossfit;

As featured in Men's Fitness, Shape, Cosmopolitan, Men's Health, Muscle and Fitness, Women's Health, ESPN and Inc. Magazine Digital Circuitry Controls with 3 Vibrating Speed Settings to release sore muscles Rechargeable Lithium Ion Battery with Power Indicator Lights (2+ Hours of Use Per Charge) High-Intensity Vibrating Core Transfers Maximum Vibration to the Body for relief and activation Compact Size-5 inch (12.7 cm), great for travel and localized relief