Keep You Warm for Long- The basic function of hot water bottle is to keep warm. OliviaLiving hot water bottles are made from High-quality PVC material, which helps maintain liquid temperature and hold the heat longer than traditional silicone hot water bottle. Multifunctional Hot Water Bottles- Our U-Shaped hot water bottle can be used for treating sore muscles, stress, shoulder discomfort, stiff necks, and other common aches. Easy To Use- Allow boiling water to cool slightly before pouring. Fill in water slowly up to 2/3 full. Press the residual air out slowly and tighten on the screw cap. Make sure there are no leaks before using. Package included: 1 U-Shaped Rubber Hot Water Bottle,. Our hot water bottle is manufactured to B.S.1970:2012 to ensure maximum safety. Preferred Gift- The attractive pattern on the cover makes the hot water bottle a thoughtful and cozy gift for your mother, father, children, friends in Mother's Day, Thanksgiving Day, Christmas and New Year's Day. NOTICE: We recommend not to touch skin directly after hot water is injected to avoid scalding, use it safely with suitable temperature. OliviaLiving Hot Water Bottle,PVC Hot Cold Water Bottle Bag U Shaped Heating Pads Pain Relievers Winter Neck Hand Warmer Bag Hot Water Relaxing Heat/Cold Therapy Hot Cold Therapies Heating Bag Xmas Christmas Gift <b>Features: </b> -Material:PVC;Size:37x35CM/14.43x13.65''; -Each water bottle and its leak-proof stopper and neck have passed rigorous fitness and strength tests. -Generally, the hot water bottle will stay warm for 3-4 hours if you use them without covering. The warm time will be longer if you use them in bed under quilt or blanket. -These classic hot water bottles are your perfect warm companion. They are also great to help ease period pains. By placing a hot water bottle on the lower tummy area to provide relief from cramps. Great gift choice for girls! -Hot water bottle can be used alone as a remedy for aches, pains and sports injuries. -A hot water bottle is a time-honored method of treating sore muscles, stress or cramps, arthritis, aches and pains, stiff necks, lower back pain, menstrual cramps and other common aches and stresses of everyday living. -Hot water bottles are easy to travel with, especially on a long flight or bus ride. -Easy to use:1. Remove excess air after fill with hot water.2 Inject 2/3 of hot water into the hot water bag.3.Tigghten the nut. 4.Wipe water with a rag. -Relieve your monthly cramps as the heat from the water bottle helps improve blood flow which eases the menstrual pain for a lighter and relaxed feel. <b>Package included: </b> 1 x Hot Water Bottle