Features: 1. High Quality: The upgrade version hot water bottle is made from food grade silicone odorless and recyclable. Wide mouth design easy to fill up water. 2. Knit Cover: There is a soft knit cover to prevent the hot surface from being in direct contact with your skin to cause burns. 3. Microwave oven Available: Can be heated by microwave oven take off the knit cover and fill in cold water the heating time is 2-3 minutes and the heating power should be not over 800W. 4. Ice Bag Function: Fill with cold water then put it into refrigerator you will get a ice bag. The silicone water bag can be used as a cold compress for pains sports injuries fever and reduce swelling. 5. Best Gift: It is the best gift for friends or families the hot & cold water bottle can be used in different seasons. It can keep you warm in cold days it also can be used as an ice pack. Specification: Material: Silicone Size: 10.2*5*29cm Notice: 1.Due to the different monitor and light effect the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. includes: 1 x Hot water bottle 1 x Knitted sets 1 x Manual "