It’s a rock, no it’s a fire pit; yes it is a fire pit disguised as a rock. Lift the lid off and the fire pit is all set for a charming back yard fireplace experience. Made from high tech resin materials with a stainless steel burner system the Rock will provide years of service with little maintenance. Designed to operate off of propane or natural gas, your Rock is shipped set for the easy connection of a portable 20 Lb propane tank that will fit concealed inside the base.