The Third Rock Outdoor Fire Pit is a high quality, hand cut and crafted fire pit designed for years of heavy use. This is one of the most unique fire pits on the market. Every Fire Pit is individually signed and numbered by it’s designer, Rick Wittrig. Each Fire Pit is made from one quarter inch (6.35 mm) thick carbon steel. This is by far the heaviest gauge metal used in any fire pit available today. The sturdy construction assures you of having this functional art for many years to come. They have an iron oxide finish/patina on the outside which will darken a little with time then become permanent.