Premium Material:: Our ice packs are made of high quality polyester, which has long service life and wear resistance, and is coated with PVC on the outside to prevent leakage. Two Size Designs: : Injury ice pack contains three designs, small, medium and large, with fixed elastic band at the waist, which helps to fix the ice pack, support more stable and multifunctional. EASY TO USE: : During cold therapy, simply add two-thirds of ice and water to the ice pack to re headaches, bruises, migraines, muscle aches and swelling. During heat therapy, add warm water to re stomach upset, migraines, sinuses and joint pain. Wide application: : suitable for cold therapy, it helps to reduce pain and swelling caused by minor abrasions, bruises, muscle aches, sprains and strains. Recommended to help re pain, reduce swelling, and speed up recovery. Portable Ice Pack:: The compact and comfortable ice pack design allows you to carry the ice pack with you to the office, car and home, which is convenient