Simple maintenance material This cover has been specially developed for the Intex Metal Frame Pool 450x220. The sail is the ideal tool to keep the pool clean when you do not use it yourself. As a result, you do not always have to replace the pool water, unnecessarily turn on the filter pump or create with a scoop net. Stably and securely attached Because of the overlap of twenty centimeters on all sides, the sail remains well over the edge. With the help of the fastening cord you can tighten the sail so that the sail stays firmly. There are small holes in the vinyl canvas. They ensure that water does not stay on the sail when it has rained so that the sail can sink. So the sail stays nice and tight around the bath. Just remove the sail and the bath is ready for a fresh and clean dive!