The ultra compact Trigger Point Nano Vibe Foam Roller with 3  built-in vibration frequencies to step up your recovery with a relaxing deep tissue massage. The Grid surface provides a 3-density system which mimics a massage therapist's hands and allows you to get a targeted massage to a specific muscle group that is troubling you. With its ultra compact design and 3 hours of battery life, you can easily take it with you anywhere for that post-run recovery session.