The Presto Nomad Mason Jar Traveling Food Warmer in red is a portable lunch heater that is perfect for on-the-go meals. Made of durable plastic and metal, this compact heater is designed for use with mason jars and does not require a stove for compatibility. With the trusted brand of Presto, you can rely on this innovative product to keep your food warm and convenient while traveling or outdoor activities. New, box still sealed