Product details:

Best Value UV Coating Black Underside Inhibits Algae Double-Stitched Perimeter Reinforced, double-stitched borders include aluminum grommets every 4ft on in-ground cover for easy and secure tie-down. Heavy duty water bag loops placed every 4ft on in-ground covers to keep the bags and cover firmly anchored. In-ground covers are 5ft larger than pool size. Order a larger cover For example, if you have a 16 ft x 32 ft pool with a 4 ft built-in end steps, order a cover to fit a 16 ft x 36 ft pool.