Neck and Shoulder Hot Water Bottle: Sit back, de-stress and let this curved hot water bottle melt away aches and pains around your neck and shoulders. The shape helps you easily mould the bag to where you need it most. This hot water bottle provides warming relief from minor ailments and is suitable for both adults and children. Comfortable U-shaped Water Bottle: This U-shaped water bottle is made of flexible rubber, making it comfy to wear. It can hold 33 oz of water, but we recommend that you fill it only 2/3 of the way full (about 23 oz.). This will help prevent water from spilling out and gives the water room to distribute as it's being used. Simple to Use: Hold the bottle by the neck upright and fill it slowly to avoid splashing yourself with hot water. Expel air from the bottle by carefully lowering it onto a flat surface until water appears at the opening. Screw the stopper on. When filling it, do not use boiling water. Only partially fill to prevent bursting. Never sit on the hot water bottle or use it as a cushion. Great for Travel: The fleece cover on this bottle helps it pass as a travel pillow on your next long car, train, or plane ride. Pain flare-ups can happen in the most inopportune places, so this is an ideal way to pack a source of heat relief you can use without the need for an electric outlet. This water bottle is great for camping or other off-the-grid destinations. Easy to Store: When you're done using the bottle, drain it completely and store it in a cool, dry, dark place until you need it again. Prevent exposure to sunlight, oil, grease, and hot surfaces to keep it in the best condition, and don't place anything on top of it while it's packed away. The fleece cover is also washable, making stains and spills easy to remove.