Performance 5 Gas Burners FlameSelect® (9 Power Levels) Dual Flame Power Burner OptiSim® Burner Convenience Enamelled Heavy Duty Grates Can be Cleaned in Dishwasher Push-to-Turn Knobs With Electronic Ignition LP Conversion Kit Included for Conversion from Natural Gas to Liquid Propane Design Gray Tempered Glass Cooking Surface Frameless Can be Installed Flush or Surface Mounted to Countertop Results are Within Reach With Up-Front Centralized Controls Cooktop Design Coordinates with Bosch Ovens and Ventilation Safety Flame failure device on each burner