The exterior is rust-proof and dent-resistant for lasting service Transform the Pro Cart Ultra with additional optional passive or electric (hot  cold) modules Energy-efficient hot electric module heats between 65,5?-74&degC Cold module powered by thermoelectric cooling chills between 30,3?-4,4&degC Thick CFC-free insulation keeps hot or cold food at safe temperatures for 4+ hours without electricity 16 sets of adjustable stainless steel rails hold food pans, sheet pans, tray and large pizza boxes Equipped with heavy-duty 6&rdquo (15 cm) casters, 2 which swivel with brakes in front, and 2 that are rigid in the back Smooth 12 x 20,3 cm menu pocket accepts index cards or grease pencils The magnetic door opens 270? and allows for quick, effortless closing Includes solar digital thermometer for at-a-glance monitoring Ergonomic moulded-in handles offer safe manoeuvring Marine rail creates a bonus staging area for pans Warranty 1 year back to base