SPRI Hot/Cold Therapy Massage Balls

SPRI Hot/Cold Therapy Balls deliver gentle, controlled tension release to hard-working muscles in the back, shoulders, glutes and feet. Two therapy balls - one smooth, one textured - are filled with a unique compound that enables them to safely retain both heat and cold. You control the temperature, motion and level of pressure for a fully customizable muscle massage. Use pre-workout to activate the body, increase circulation, and enhance muscle readiness. Use post-workout to reduce soreness, stretch muscles and restore body alignment. Set of two; approx. 4 diameter.