Super high quality: Made of high-quality food-grade silicone. Allergy-free, odorless, and recyclable. Excellent durability and longevity. It is anti-pressure and anti-stretch with high explosion-proof properties, remaining safe and solid at both high and low temperatures and designed for long-lasting use. It is thermally insulated and retains heat, giving you a comfortable hand feeling. Unique design: This hot water bottle is equipped with a removable plush lining, which feels very comfortable and soft. The plush cap not only prevents direct contact between the skin and the bottle and avoids burns, but also retains heat longer. Removable and washable make it more convenient to fill with warm water. The size is shown in the picture. ESSENTIAL WARM TOOLS IN WINTER: This cute hot water bottle is an ideal Christmas, birthday, or New Year's gift for children, girls, boys, men, and women, as a baby hot water bottle. Hot water bottle for children and adults. Whether on the go, at home, in the office, or outdoors, this hot water bottle is very practical. Perfect for body pain relief or warming your feet in bed. KEEPS WARM AND PAIN RELIEF: This hot water bottle for pain relief accelerates blood circulation and relieves neck and shoulder fatigue. Classic hot water bottle rubber suits for hot and cold water. Medical purposes, it can effectively treat sore muscles, menstrual cramps, stress, or arthritis, stiff necks, lower back pain, etc.