Holding Cabinet, heated, doorless, pass-through, stackable, 1/2 size, (4) individually heated shelves, digital controls, individual shelf timers, built-in removable food covers, holds (4) 12" x 20" or (8) 6" x 20" pans, end loaded, stainless steel construction, 3" swivel casters with brakes, cETLus, ETL-Sanitation