The Glo-Ray® Built-In Heated Shelf with Flush Top is a versatile and efficient addition to your serving surface. With a surface area of 31-1/2" x 31-1/2", this shelf features a hardcoat aluminum top for durability and uniform heat distribution. The blanket-type element ensures that your food stays warm for longer periods of time. The built-in adjustable thermostat allows you to control the surface temperature, while the illuminated on/off switch makes it easy to operate. This shelf is NSF, cUL, UL, UL EPH Classified, ANSI/NSF 4, and CSA certified for added safety and reliability. It also comes with a mounting bracket for easy installation.