Healthtokri Electric Rechargeable Heating Gel Bag is used for providing convenient and effective heat therapy to relieve pain and discomfort. The gel bag eliminates the need for heating water on a stove or heater. It heats up in just 5 to 10 minutes and retains warmth for up to 120 minutes, depending on the setting. The heating pad can be placed inside a quilt to maintain warmth or used at lower temperatures for massaging body parts. This device offers a hassle-free alternative to traditional hot water bottles, delivering consistent heat to affected areas.