Robelle 20'X40' Gray/Black Mesh Pool Cover with Water Bags Gray/Black Mesh Cover with a Dense Weave, Cover Carries a 10 Year Warranty - Water Bags Included 4' Overlap around the cover Water Bag Loops and Grommet Every 4ft Comes Complete with your Water Bags (color black) to go around the Pool Cover Package includes 12 qty of 1' X 8' Double Water Bags and 4 qty of 1' x 10' Double Water Bags