Great Value! Set of 2 Durable Rubber Hot Water Bottles • Soothe your body with warm heat in chilly temperatures • Use Heat to Relieve Sore Muscles, Back Pain, Arthritis, Stress, Sports injuries and other Pains • Ribbed texture makes skin contact safer and more comfortable • Fills to a 2 quart capacity • Features easy to fill lip with secure screw topper • Made from Natural Rubber, Non Toxic • Conforms with BS1970 : 2006 Safety Standard • Fill only to two-thirds capacity maximum • Check stopper for wear and tear damage at regular intervals