By applying the latest in state-of-the-art weaving technology, UltraWeb 3000 delivers a superior UV-treated ground cover for less than the cost of common 6-mil black plastic. That�s right, UltraWeb 3000 CAN SAVE YOU MONEY! This unique woven polypropylene ground cover is the ideal choice for safe weed control and water conservation. Use our anchor pins sold here for installation.