- Advanced thermoplastic material retains heat longer than traditional hot water bottles, providing effective pain relief. It also functions as an ice pack or cold water bottle, offering versatility for various situations. - Usage Instructions : This hot water bottle should not be microwaved. Fill with hot water, ensuring it does not exceed two-thirds of capacity. After use, deflate slightly and securely tighten the lid to prevent burns. - Classic Design & Multiple Applications : The timeless design is perfect for soothing sore muscles, alleviating stress, and addressing cramps, arthritis, and lower back pain. Ideal for menstrual cramps, neck stiffness, and can also serve as a cold compress for fevers or to reduce swelling from minor injuries. - Safety Features : Designed with an elegant lid to prevent direct contact with hot rubber, further reducing the risk of burns. The rubber material is durable but should be replaced after two years of use for safety. Regularly check the cap for wear and tear. - Perfect for Home or Travel : This hot water bottle is an essential companion for cozy nights at home or on-the-go relief during travels. Its multi-functional capabilities ensure you are prepared for various comforting needs, whether dealing with aches or needing cold relief. This product is crafted for those seeking practical solutions for pain management, combining safety, function, and style effectively.