Steel frame above ground swimming pool covers are made from hard wearing UV resistant material which help to protect your pool from the damage and harmful effects of the sun. Drain holes have also been incorporated into the design to stop rain weighing the Bestway pool cover down and dragging it into the pool. Rope ties are also included to secure the above ground pool cover and prevent it blowing away in windy conditions. Protects and insulates your swimming pool. Prevents dirt and debris accumulating in your pool.Drain holes to stop rain build up. Simple to secure with hard wearing rope ties. Note: This is only the Pool Cover, Pool is not included.