Keep your pool clean and pristine when it's not in use with the Bestway Round Pool Cover. Above ground pool covers are a must-have accessory; they keep debris, leaves and trash from getting in the water, and reduce the amount of chemicals you need to use to keep your water in tip-top shape. This pool accessory features drain holes to prevent the accumulation of water, which protects the cover from stretching from the strain of the weight. A rope is built into the lining of the cover, and it can be tightened to keep the cover in place, even in windy conditions. This cover is the perfect accessory for Bestway 3.66 m (12 ft.) round frame pools and round inflatable ring pools. Features: Essential accessory for maintaining the cleanliness and quality of your Fast Set pool when it's not in use. It acts as a protective shield, keeping out debris, leaves, and other unwanted elements By securely covering your pool with this accessory, you create a barrier that helps prevent the growth of algae