The Cryo Pro Universal Wrap provides cold compression to any area you can apply the wrap, most effective applied to the back, thigh, calf or upper arm. The wraps work by compressing the injured area for 7 seconds and releasing for 5 seconds in a repeated cycle until the session is over. Cold compression therapy helps to calm muscle spasms, minimize bruising and soothe nerve endings, helping to encourage quick and effective healing for a variety of muscle, tendon and ligament injuries. It is one of many wraps available for the Cryo Pro unit. It is easily adjustable with accessible hooks and Velcro, allowing you to adjust to the size of the patient. It provides effective and comfortable cold compression therapy to the affected area, making it ideal for rehabilitation and recovery for most injuries. Please note, this is the universal wrap only. The Cryo Pro unit is sold separately.