The Glo-Ray® Heated Stone Shelf is a built-in shelf that measures 31-5/8" x 19-5/8" x 2-1/4" and has a temperature range of 100-200°F. It is cULus and UL EPH Classified, and ANSI/NSF 4 certified. This shelf is made in the USA and is constructed with approved food-safe materials. The shelf features an adjustable thermostatically-controlled heated base and a blanket-type foil element that creates uniform heat across the entire simulated stone surface. It comes with a cord and plug located at the end of the remote enclosure. The portable models come with a 6' cord and plug, while the built-in models include a control box with a 3' conduit between the heated shelf and the control box, as well as a 6' cord and plug. The shelf is available in three decorative stone colors: Night Sky (standard), Gray Granite, and Bermuda Sand. The portable models have rubber feet, while the larger models have 4" legs. Options available at the time of purchase include different simulated stone colors, adjustable legs instead of rubber feet for certain models, and different designer colors for the flush mount control bezel box. There are also options for different control boxes, conduit connectors, and recessed tops.