Keep warm and cosy on those long, cold winter nights with one of these fabulous hot water bottles. The hot water bottle is made from natural rubber and conforms to British Standard 1970:2006. The bottle should not be overfilled - three quarters full is the maximum recommended amount. Also the knitted cover is removable, made from 100% polyester and machine washable at 30o. Please note that the colour of the natural rubber water bottle may vary from the colour shown. Check out the great variety of cosy, cute and fun covered hot water bottles available in our online store - they also make ideal gifts!