Key Features . Cast Iron -Hard-wearing and durable keeping your kitchen looking as good as new.4 burnersAuto IgnitionFlame safety device if your flame goes out the gas supply will stop automatically giving you total peace of mind. The Triple Wok Ring. - the art of stir frying is in the power and heat of the wok burner. The wok burner optimises the power of gas and allows quick and uniform cooking delivering even heat around the pan and is 15% faster than standard burners.Flame failure safety device. .