Our firepits are made of durable thick cast iron, which is finished with black high-temperature paint for heat resistance up to 500°C. It can be used to burn dry wood or logs, which are more environmentally friendly and safer than coals. The curved bottom of the cast iron fire pit can be heated with less wood. The whole fire pit is supported by 3 legs to ensure its stable structure. More importantly. The garden fire pits do not need tools and screws to install, simply attach the 3 removable legs in less than 1 minute.