PERFECT EFFECTIVE AT PAIN RELIEF __ This large hot water bottle will help with menstrual cramps, period pain, stress, aching muscles, period pain relief, neck pain relief, and foot warmer. A hot water bag with a large capacity of up to 2 litres is ideal for warming your bed. This relieves pain and provides a positive environment during difficult times. NATURAL RUBBER HOT WATER BOTTLE __ Using a hot water bottle 2l helps you keep warm for a while. In need to be warm, cosy, and comfortable on chilly winter evenings, fill your hot water bottle with hot water. On a chilly Sunday, relax on the couch with your favourite movie or television show and a cup of coffee. If you place hot water bottles in your bed 5-7 minutes before going to sleep, it will calm you for the next 3 to 6 hours. THE BEST GIFT IDEA __ The heated water bottle may be a wonderful gift for your friends and family to keep them cozy and warm, especially in a cold environment. They make wonderful gifts for every occasion, especially Christmas and stocking Christmas gift, and are ideal for use indoors or outdoors, such as when travelling. Best for Christmas, Boxing Day Gift, birthday gift, Valentine's Day Gift, Mother's Day Gift, Father's Day, etc. BEST QUALITY STANDARDS __ 2L Natural Rubber Hot Water Bottles dimension around 31 x 18 cm when covered and are free of any hazardous materials. British Standard BS 1970: 2012 is completely compliant with hot water bottles.1L size: 25*15cm0.5L size: 20*11 CAUTIONS! __ Only fill this hot water bottle up to two-thirds full and avoid using boiling water. Do not overfill the bottle because it could rupture. - Hold the bottle upright by the neck and carefully fill it with hot water to prevent spillage. - Carefully place the flat water bottle on a flat surface to release air until water is visible at the opening. - To avoid leaks, make sure the stopper is completely tightened.