Inspired by the raw beauty of volcanic terrain, the Lava Tube fire pit is cast from glass-fiber reinforced concrete and finished with a lava stone texture that evokes the rugged flow of cooled magma. With a push-button spark ignition, this propane-powered centerpiece roars to life with up to 40,000 BTUs of warmth—fully certified for CSA, CE, and UKCA use—while cleverly hiding a standard 20 lb (5 kg) propane tank within (tank not included). Included are 6.6 lbs (3 kg) of lava rock to cradle the flames in earthy splendor, and a fitted PVC cover to shield your fiery haven when not in use. WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.