Large capacity of 2 litres: The long hot water bottle holds 2 litres and is 72 x 14 cm. Please do not use boiling water for your safety. Do not add too much water, it is recommended to fill only up to 2/3 of the maximum water capacity to ensure long-lasting heat retention.Soft cover: The hot water bottle cover is velvety soft on the skin, the soft and fluffy outer shell prevents burns caused by direct skin contact. The long heated cushion provides the neck, shoulders, back and stomach with a pleasant, long-lasting warmth.Double function cold and warm: Hot water bottle for back pain, neck and shoulder pain, menstrual pain, joints and pregnancy, very suitable for pain relief and fever. Cooling water/ice bottle for sprains or cold compresses to keep you cool in the hot summer.Safety guarantee: The hot water bottle is made of high quality natural rubber and plush according to CE-standard and complies with BS1970 safety standards: 2012. The seams are explosion-proof, foldable, non-toxic and tasteless. The lid is removable and washable.Perfect gift: Suitable for the elderly and children, it is the most intimate gift for lovers in winter, birthday, Christmas, Thanksgiving and Valentine's Day. On cold days, hot water bottles bring warmth and comfort.