PLEASE NOTE: Pink and purple refill bags are shipped randomly 1.SAFE & NO LEAK: Toxin Hot Water Bag is made of new anti-aging rubber, longer life than traditional ordinary rubber bottles. Make sure maximum safety and transfer the heat perfectly. Passed pneumatic pressure test, 24 hour swing test. It is completely pressure-tolerant and leak proof. 2.KEEP YOU WARM FOR LONGHot Water Bag with cover designed to retain heat to ensure your comfort and are a great ecofriendly alternative for a heating pad . the soft covers distribute the heat evenly and It will accompany your family and you through the cold winter, also It is ideal as hands and bed warmer. 3.Easy to useWide Bottle Nozzle - Hot Water Bag Comes with an anti-squirt stopper, safety and easily let water in and out, prevent water spitting back out. Our Hot Water Bag maximum capacity 1000ml, suggested to fill to two-third, . CAUTION: about baby and kids safe. an adult should always supervise and never fill with boiling water. 4.Multi-functional UsageHot Water Bag,You can use it at home, office or outdoor use, works great for back and neck pain, arthritis, sports injuries. besidesHot therapy helps to relax your tired muscles and tensed shoulders from stress and too much workout. They also can also be used for cold therapy, easy fill in cold water or crushed ice 5.Excellent Hot Water Bottles With CoverNever worry about its life, Our Hot Water Bag is rigorously tested and made with love because we believe that you deserve the best. If you have any questions or need any help, just reach us and we will do our best to give you the most satisfactory solution.