Oversized hot water bottle: 23 x 14 cm (9 x 5.5 inches); plush cover: 31 x 21 cm (12.2 x 8.2 inches); waist cover: 107 cm (42.1 inches). Suggestions: 1. Do not exceed 80 Celsius (176 Fahrenheit) in hot water. 2. Fill two-thirds full. Long-lasting Warmth and Environmentally Friendly: The hot water bottle is made of natural rubber to ensure maximum safety and perfect heat transfer, keeping water warm for longer. Comes with an anti-splash stopper, safe and easy to flow in and out, preventing water from splashing out. Quality Plush Waist Cover: Comes with a plush waist cover, designed with super soft double-panel fabric to keep your hands and waist warm at the same time. The soft covers distribute heat evenly and protect you from overheating. It's ideal as a bed warmer. Multifunctional Use: The hot water bottle can be used alone as a remedy for aches, pains, and sports injuries, such as back, neck, and shoulder pain, sore muscles, menstrual cramps, and tension. In addition to traditional heat therapy, it can also be used as a cold compress for children with fever or to reduce swelling in minor injuries.