Intimate large bottle cap design: The large mouth cap design is convenient for putting in ice cubes. In addition, when applying hot compress, the large mouth cap can also better inject hot water to avoid hand burns. Note: Hot compress therapy works best at a temperature of 50-60C / 122F-140F, and the ice pack injury is reusable Safe and durable material: The reusable wound ice pack adopts soft and elastic fabric, which keeps hot or cold water longer than other ice packs, explosion-proof and leak-proof water bag [Effective hot and cold therapy] Cold therapy: cold therapy, add ice cubes and water to the ice pack to relieve muscle soreness, swelling, sprains, toothaches and migraines. Hot therapy: add warm water to the hot water bottle to relieve pain such as dysmenorrhea, abdominal, stomach, back, head and joint discomfort Practical and gift giving: The refillable ice pack is lightweight, waterproof, foldable and easy to carry. When you are outside, use the injury ice pack to relieve the pain of sprains or falls. At home or in the office, you can use warm compresses to relieve neck and shoulder fatigue Perfect and Practical Size: [Large Ice Pack (11 inches)] - This size is suitable for children, teenagers, adult men and women, shoulders, neck, head, abdomen, legs, feet, arms, hips, etc., no more fit!