Spri Recovery Hot Cold Massage Kit Designed to prepare your body to get the most out of every workout and help your body recover post-workout. Use before to activate the body, increase circulation, and enhance muscle readiness. Use afterwards to reduce soreness, stretch muscles, and restore body alignment. Deliver gentle, controlled tension release to hard-working muscles in the back, shoulders, glutes and feet with this versatile kit. Two therapy balls - one smooth, one textured - are filled with a unique compound that enables them to safely retain both heat and cold, giving you one easy-to-use tool with a variety of highly effective pain relief applications. You control the temperature, motion and level of pressure for a fully customizable muscle massage. Kit includes: One Textured Massage Therapy Ball and One Smooth Massage Therapy Ball Features: - Total Body Relief - Increases Circulation - Massages Stiff Muscles - Relieves Soreness