COLD THERAPY RELIEF: within seconds, chills the shoulder, knee, elbow, ankle, hip, foot or anywhere to relieve soreness, aching, bruises, pain from injury, inflammation, swelling from sprains, strains, or chronic conditions. COLDER FOR LONGER: Reusable, proprietary cold pack stays colder for Longer than competing ice wraps with inferior formulations. MORE FLEXIBLE: Professional-grade clay interior aids recovery by staying pliable when frozen to better conform to any body part.