For self-serve operations, the Hatco Glo-Ray® Heated Glass Merchandising Warmers, featuring Hatco's patented heated glass shelves, hold hot wrapped or boxed food products at proper serving temperatures and place the products right at customers' fingertips. Patented heated glass shelf provides an even heat source for top and bottom heat. Includes a thermostatically-controlled hardcoated heated base. GR3SDS models are slant, single shelf units. Available in all Designer colors (standard Designer Black) to match your décor.