The TriggerPoint MB Vibe massage ball is a must-have for athletes who want to perform at their optimal level day in and day out. Combined with the spherical design for multi-directional rolling, the roller's vibrations penetrate deep into muscles to target tense muscles with precision. With 3 different vibration speeds, the MB Vibe helps increases circulation compared to non-vibrating massage balls. Ideal for use before a workout, the vibrating massage ball loosens and lengthens muscles to increase flexibility. Product Features Features 3 different vibration speeds Helps athletes customize every massage Spherical shape allows for multi-directional rolling Pinpoint and target muscle soreness Wrapped in high-density silicone to grip the skin for an enhanced massage Includes a rechargeable battery that lasts for up to 2 hours per charge Additional Details Dimensions: 4" x 4" x 4" Weight: 1.65 lbs 1-year manufacturer's warranty