SAFE EASY TO USE: The wide mouth design prevents you from being scalded when filling water, and can easily, quickly and safely pour water into the thermos water bag without spilling. Note: Please fill two-thirds with hot or cold water. COMPRESSIONFOR HEAT AND COLD: Advanced thermoplastic retains heat for up to 8 hours compared to traditional rubber thermos, recycled thermoplastic, also works as an ice pack or water warmer pack. But please note that this thermos is not suitable for microwaveuse. Non-Toxic, Odorless, and Harmless: Hot water bottles for cramping are free of BPA, phthalates, and other harmful ingredients. Non-recharging hot water bottles are easier to carry. You can use them anywhere with confidence. Also a good choicefor holiday gifts Good helper: Using the hot water bottle with soft cover can relieve menstrual cramps, muscle aches and pains in various parts of the body. Keep warm in winter, cold compress in summer. everyone deservesShipment Quantity: 1 piecePackage Contents: Only the above package content, other products are not included.Size: about 22*34cm(Reminder: The size is measured manually, please allow 1-2cm measurement error)color: grey(Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.)