Designed for the large family kitchen, the PM941VSTGB has 4 burners & 1 electric zone to provide plenty of cooking space. For safety, this cooktop is equipped with Flame Failure device automatically cuts the gas in case of leak. The tempered glass top is easy to clean and carries a lifetime warranty. The Newmatic knobs are made of zinc alloy and completely melt proof. Heavy duty cast iron trivets are sturdy & durable.