Always bring heat designed to be explosion proof and hold heat longer than traditional rubber bottles. It is non-slip and anti-scald, combined with a fashionable and soft knitted cover, to prevent direct contact with the skin and cause burns.Keep it warm for 2-6 hours. Home Pain Relief - Hot water bottles can keep whole body warm, treat muscle pain, lower back pain, stiff neck, menstrual cramps, tension and cramps. by minor injuries. Multifunctional food grade thermoplastic hot water balloon material is odorless and recyclable. Wide mouth, easy to fill with water, can also be used as an ice pack or cold water bottle. Microwave heating - can be heated in microwave oven waves, remove the knit cover and pour in cold water. After the test, there is no risk of leakage and explosion. Fill it with cold water and put it in the fridge, you will get an ice pack. Handy little gifts - the best gifts for kids, friends or family. Hot and cold water bottles can be used in different seasons. It can keep you warm in cold weather, and it can also be used as an ice pack. Product Feature: Relieve your pain in an emergency These hot water bottles are the perfect warming companion for menstrual cramps. Relieve cramps by placing a hot water bottle in the lower abdomen. A good choice for gifts for girls Keep warm for a long time Generally, if you use a hot water bottle without a lid, it can stay hot for 2 to 5 hours. If you cover the bed with a blanket or quilt, the hot weather will last longer. Great for cold treatment It is also great for relieving headaches, muscle aches and other pain in the knees or joints. Simply put the crushed ice in the bag and lock it for immediate cold processing. The best gift for your sweetheart This hot water bottle can provide a warm hug to your adorable child in cold weather. Equipped with a stylish knitted water bottle cap, which can prevent the hot rubber from directly contacting the skin and causing burns, which is safe for children. Capacity: 300 ml When heating in a microwave oven, please note: 1. Add cold water to a maximum of 80% and place in the microwave for up to 3 minutes. 2. Remove the knitted cover before putting it in the microwave. The heating power must not exceed 800W. 3. In the event of unforeseen circumstances, such as expansion during heating, please stop the heating and do not turn on the microwave immediately. Package includes: (one set) 1 * inner lining 1 * jacket (blue) 1. Manual measurement, there will be some errors in the size, please refer to the actual size 2. Due to the light and screen difference, the product's color may be slightly different from the picture.