- Experience effective heat retention with our advanced thermoplastic hot water bottle. It keeps warmth longer than traditional bottles and can also be used as an ice pack or cold water bottle for versatile comfort. - Please note: This hot water bottle is not microwave safe. Fill it to no more than two-thirds of its capacity with hot water. Always tighten the lid securely after deflating to prevent burns. - The timeless design provides relief for various ailments, including sore muscles, stress, cramps, arthritis, neck stiffness, and lower back pain. It's also perfect for alleviating menstrual cramps and can double as a cold compress for fever and minor injuries. - Each hot water bottle includes a stylish lid that protects your skin from direct contact with hot rubber, reducing the risk of burns while adding a chic touch. For safety, replace the rubber bottle every two years and regularly check the wear on the cap. - Ideal for home use, travel, or as a thoughtful gift for women, this hot water bottle is a practical solution for everyday discomfort. Whether you're winding down after a long day or seeking relief from specific pains, its design and functionality make it a must-have accessory for your comfort needs.