Features 1. Magical Portable Microwave Oven: Tired of cold and unhealthy food or waiting in line for the office microwave? Get your own food warmer and enjoy a warm meal conveniently by having this magical little oven 2. Super Easy to Use: Portable lunch box warmer design with automatic temperature control, heat your lunch to around 50 degrees, then it automatically switches to heat insulation mode, no risk of overcooking food, preserves moisture and enhances flavor. 3. Kitchen Assistant on the Go: This food warmer is perfect for outdoor work, camping, fishing, or anywhere outdoors. Just choose your favorite fresh or prepared meal in advance. 4. Wide Compatibility: Portable food warmer is compatible with any flat-bottomed food container in size 16cm W x 21cm L x 8cm H, which accepts glass/plastic/cardboard/metal/aluminum foil/ceramic containers. 5. Waterproof Material: The outer layer is made of waterproof Oxford cloth, and the inner layer is aluminum foil and pearl cotton to better maintain the temperature. Specification Material: Oxford cloth+Aluminum foil+Pearl cotton Color: Grey Size: 21168 cm Weight: 200g Package Includes: 1 Heated Lunch Box