Premium Material - Along with the high quality thermoplastic material that is recyclable, the hot water bottle with advanced thermoplastic holds heat longer than traditional hot packs, also works as an ice pack, or cold water bottle. It also can be as gifts under 10 dollars for women, mom, dad, teens. But please caution: The hot water bottle rubber is not suitable for Microwave oven heating.Easy to Use - This hot water bag for pain relief with wide mouth is easy to fill and the anti spurt lip prevent water spitting back out like those old rubber ones. Fill only to two-thirds capacity maximum.Protective Cover - Our hot water bottle with cover comes with elegant fleece water bottle cover to prevent the hot bottle from being in direct contact with your skin.Helpful Assistant - This hot water bottles with cover treating sore muscles, stress or arthritis, aches and pains, stiff necks, lower back pain, and other common aches, could be used as a hot compress. It also can be as mothers day gifts for mom.Package - Packaged with one 1 Liter hot water bottle rubber and one adorable, removable, washable fleece cover.