Features: Safe & leak proof, hot water bag makeof pvc, durable, make sure safety and transfer the heat perfectly. thread bottle stopper design,corrosion resistance,high temperature resistance, leak proof. Keep you warm for long,hot 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 as hands and bed warmer. Easy to use,wide 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 capacity, suggested to fill to two-third, .caution: about safe kid. an adult should supervise and never fill with boiling water. Multi-functional usage,hot water bag,you can use it at home, office or outdoor use, works great for back and neck pains, sport injuries. besides,hot therapies helps to relax your tired muscles and tensed shoulders from stress and too much workout. they also can also be used for cold therapies, easy fill in cold water or crushed ice. Wonderful sweet gift ,the warm water pouch can be sweet warm gift for friend family or yourself. Specifications: Material:Flannel Color:Silver,Wine Red,Coffee,Red,Purple,Blue Note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 Set Hot Water Bag