Add a decorative touch to the garden with the Fake Rock Artificial Stone Skimmer and Septic Lid Cover - 108. Designed to conceal unsightly exposed pipes, this easy to use faux rock gives any outdoor space cohesive look.The Fake Rock Artificial Stone Skimmer and Septic Lid Cover - 108 is sure to transform any outdoor space. Designed to cover everything from septic risers to manhole lids, this landscaping rock turns unwanted pipes into decorative features. Made of recycled polyethelyne this faux stone is eco friendly. The UV protective coating ensures this stone won't fade in the sun or crack in the cold. This completely hollow rock comes with the required ground stakes to keep it in place.