An Essential Massage Tool: The cryosphere cold massage roller ball has application for many major injuries active people face such as tennis/golf elbow, and other overuse injuries. Its' unique combination of self myofascial release and cryotherapy allows for the body to recover faster and decrease the potential for injury. Great Gift Idea Choice for Who You Loved. Convenient & User-Friendly: 2.36-inch massage ball, just your palm size. Perfect for use while sitting on any chair, laying in bed, on the floor, or on a yoga mat. Use them at home, at the office, or at the gym. Lightweight, portable and easy to bring along on any trip. The roller ball features a unique design for use with or without the handle. Premium Quality: The massage roller ball is made from 304 food-grade stainless steel and filled with nontoxic cooling gel, which can be kept cold or warm for a long time. The base of the ice roller is made from ABS and rubber for optimal grip. Our Cryosphere handle provides comprehensive free rolling motion for full body recovery. Versatile & Multi-functional: The cold massage roller ball provides all the benefits of a traditional self Myofacial Release (foam rolling) in combination with Cryotherapy (Ice Massage). These two forms help to decrease inflammation, myofascial release, aid in post-workout recovery and allow specific treatment for areas in need. Great for back, neck, and shoulder pain, plantar fasciitis, shin splints, hamstring and fatigued muscle relief, and much more. 3-In-1 Design Massage Ball: Combine the benefits of Ice and Massage in one single product. Activate your Cryosphere in the freezer for 2 hours and use your Cryosphere for up to 6 hours of ice muscle relief, or place in hot water for 5-10 minutes for 20 minutes of warm therapy. Useful for pre-and post-workout recovery.