These ice bags are made of polyester and TPU that can withstand cold temperatures and prevent leakage. They are easy to fill with cubed or crushed ice and can be applied to any part of the body. Whether you have an upset stomach, migraine, sinusitis, or swelling from sprains, these ice bags can help relieve discomfort, reduce swelling and speed recovery. They are also lightweight and portable, so you can take them anywhere you need. Specification: Name: Ice Pack Bag Size: about diameter 15cm 5.91in : polyester TPU Packing list: 1 x Ice Pack Bag Note: 1. Due to the different display and lighting effects, the actual color of the product may be slightly different from the color shown in the picture. Thanks! 2. Due to manual measurement, measurement deviation of 1-3cm is allowed.?Scope of Application: Our ice pack bag can help you heal from various conditions that cause discomfort and swelling, such as sports injuries. You can fill it with ice cubes or crushed ice and apply it to any part of your body that needs soothing, such as your forehead, neck, back, hands, or feet. ?Quick Relief: By applying this ice pack bag to the affected area, you can help ease discomfort from minor injuries such as sprains, bruises, and muscle discomfort. ?Leakproof and Spill-proof: Because it has large opening design, you can easily fill it with cubed or crushed ice. The ice pack bag is made of durable material that prevents leaks and spills. It stays secure and dry even when you move it around. ?Soothe Various Discomforts: This ice pack bag can help you with different kinds of discomfort, such as headaches, bruises, swelling, stomachache, migraine, or sinusitis. You can fill it with ice and water for cold treat, or with hot water (not boiling) for heat treat. This will ease your discomfort in no time. ?Reusable and Safe: Our ice pack bag is versatile and quality product that can hold both heat and cold for your needs. It is safe and reusable for different purposes. It has delicate in appearance and durable in performance design, made of polyester and TPU that is not easy to deform or break.