Using no fuel or electricity, this pool solar blanket offers you an effective and affordable solution to heat up your pool water and extend swimming season. And this pool solar reduces 95% of water evaporation. Moreover, this pool cover can also prevent leaves, dust and debris from accumulating in the water. Also, it can raise water temperature by up to 8-15℃/ 14-27℉in about 5-7 days of consistent sunlight(Please Note: The effect of heating is influenced by the environment). Besides, it's easy to store and transport with the carrying bag. In addition, you can freely cut it into the shape you want to fit the shape your pool!