Durable Material: It is made from rubber. Large capacity design, ribbed outer surface helps maintain fluid temperature. Dimensions: 10.3 x 7.5 x 16cm.Multiple functions: the hot and cold hot water bottle with wide mouth is easy to fill and use. The heating bag to relieve pain. Use it for shoulder pain, medical purposes, as a foot warmer.KEEPS YOU WARM FOR HOURS: It can provide you with a warm bed after you put the hot water bottle in the bed shortly before going to bed. It is also a perfect gift.Warm Design: The outer knitted padding is not only attractive, but also prevents direct skin contact on the surface of the hot water bottle. Each piece is carefully crafted.Soft Touch: Pure natural rubber, anti-aging, long-lasting insulation, plush hot water bottle cover is smooth and comfortable.