Type of cooking appliance: Tabletop IH cooking heater This is a retro item, but its operation has been confirmed. It was stored in the back of a shelf, but I haven't had much opportunity to use it, so I'm offering it to someone who will. As a precaution, I measured the temperature with a thermometer, and it reached 98 degrees in less than 5 minutes (photo 9). Brand: National Model: Electric Warmer NK-90 Size: 21.5 x 21.5 x 3.5 cm Cord length: 195 cm