They will develop the dark color shown in the images once they've been seasoned

Arteflame Grills are all steel making them quite heavy

7" diameter

Weight 185lbs BTUs 300k Material Heavy duty ¼ “ thick mild carbon steel  Fuel Natural Gas

Dimensions: L 60″ x W 27″ x H 17″

Elementi - Modeno Natural Gas / Propane Conversion Kit Conversion:Natural Gas to Propane They will develop the darkPerfect for converting a propane fire pit to natural gas (or vice versa), tap directly into your property's natural gas supply line and forget about refilling those propane tanks, without worrying about running out of gas mid way while hosting your memorable gatherings in backyard. High quality brass construction ensure the durability and reliability. IT MUST BE INSTALLED BY A QUALIFIED INSTALLER OR GAS TECHNICIAN! Included with your order: 10 ft.