Safe and Durable -- The Hot Water Bottles Are Made of Premium Natural Rubber, Ce Compliant, Bs1970:2012 Safety Tested and Monitored, Tested for Harmful Substances. The Stopper Material Is Pvc. A Soft, Warm Gift for Children, Adults and Parents In Cold Winter Day and Night. . Outstanding Warmth -- The Soft Cover of The Hot Water Bottle Protects You From Excessive Heat. The Cover Distributes The Heat and Gives It Off Evenly. This Creates A Pleasant Feeling of Warmth On The Skin. It Relieves Neck Pain, Shoulder Pain, Stomach Ache, Etc. Soft Cover for Cozy Evenings -- The Hot Water Bottle With A Soft Cover Is Suitable for Cozy Evenings With Two or Alone With A Glass of Wine On The Couch. Especially On Cold Winter Days, The Hot Water Bottle Ensures Well-Being and Comfort. . Large Capacity -- The Hot Water Bottle With The Dimensions 32X21Cm Has A Capacity of 1.8 Liters. This Allows The Hot Water Bottle To Give Off Heat for A Particularly Long Time. A Notice: for Your Safety, Do Not Use Boiling Water. Do Not Fill Too Much Water, Only 3/4.