1. Specially designed for knees: The ice pack is specially designed for knees, the ice pack is made of durable soft-touch material and medical-grade gel, which can maintain flexibility even when frozen. It will cover the injured knee area well, the elastic band will hold the ice pack tightly on the knee, washable and reusable.2. Effective Pain Relief: Adjustable hot and cold compresses can relieve knee pain, soft tissue pain as well as joint stiffness, inflammation, chronic disease and muscle pain. Keep one in the freezer for emergencies.3. Easy to use: The small hole in the middle allows your knees to bend freely without affecting your daily activities.4. Safe and Durable: Made of medical gel, sealed with advanced heat-sealing technology, so the ice pack is safe for daily use and can be reused hundreds of times.5. How to use: apply cold compresses, put it in the freezer or refrigerator freezer (-18C to -20C) within 60 minutes, or put it in the refrigerator for a long time. first aid. Helps relieve strains and sprains.Notes1. This compress bag is only suitable for external use. If the package is accidentally damaged and the inner liquid touches the eyes or skin, just wash it off with clean water.2. In order to prevent the temperature from being too high or too low, it is best to wrap it with a towel or cotton cloth when using it. If you feel uncomfortable after applying it, you should put it down for a while before applying it. If the user's circulatory system is abnormal, use it according to the doctor's advice .3. The time for each hot and cold compress should not be too long, 15 to 20 minutes is enough.