3 SIZE DESIGN FOR DIFFERENT REQUIREMENTS: Small 6 and medium 9 for children and teens, large 11 for adults. Comes with a compression wrap to help hold the ice bags securely in place, providing stable and versatile full-body support. A must-have for sports injuries, pain relief, muscle aches, and first aid. EASY TO USE FOR HOT & COLD THERAPY: For cold therapy, fill the ice bag two-thirds full with ice and water to help relieve discomfort from headaches, bruises, migraines, muscle aches, and swelling. For heat therapy, add hot water (not boiling; recommended temperature is 50–60°C / 122–140°F) to help soothe stomach discomfort, migraines, sinus pressure, and joint pain. INSTANT PAIN RELIEF: Ice bag packs are ideal for applying cold therapy to help reduce pain and swelling from minor scrapes, bruises, muscle aches, sprains, and strains. Suitable for sports injuries and first aid. Recommended to help relieve pain, reduce swelling, and support recovery. SAFE & WATERPROOF: Features a superior leak-resistant cap with a large opening for easy filling with ice cubes or crushed ice. Made with soft, waterproof, and flexible material that helps retain cold and heat longer than gel packs or other types. LIGHTWEIGHT & PORTABLE FOR DAILY USE: The 9-inch ice pack weighs only 3.5 oz, making it easy to carry and store. Keep one in your car, at your work desk, at home, or in your travel bag for immediate pain relief. Ideal for headaches, soreness after chiropractic visits, or general aches and pains—get soothing relief with hot or cold therapy whenever needed.