With ridges for peak performance. Long lasting. Starts fast. Burns hot. Promotes airflow. No lighter fluid needed. Unconditional Guarantee: If for any reason you are not completely satisfied by your purchase, simply return the product with proof of purchase for replacement or refund, whichever you prefer. This product complies with South Coast Air Quality Management District Rule 1174, Ref. C29. We welcome any comments or questions you may have. When writing, please include the 12 digit UPC number. Questions? 1-888-423-0139. Made in the USA.