This Intex round pool cover 28031 keeps your pool free of dirt, insects, and other debris when it is not in use. Made of high-quality polyethylene, the cover is tear-resistant and water-repellent. Thanks to the small drain holes, our pool cover allows rain water to go through instead of accumulating on top. The small drain holes also ensure ventilation. Our swimming pool cover can be firmly attached to the pool with included rope ties.