▶ Perfectly designed and insulated: This pool heater cover is made of thousands of blue bubble films, which can lock the temperature of your swimming pool in winter and summer, and block external dust and other access to the swimming pool, safer and more environmentally friendly. ▶ Protect your swimming pool: When you are not swimming, just put on this pool cover to prevent dust and debris from falling into it, reducing cleaning times and maintenance costs. Swimming pools can last longer, this in-ground pool cover can bring you more benefits and happiness. ▶ Reduce water evaporation: This solar blanket can help you reduce 95% of pool water evaporation, so you don't need to add water every time you swim and avoid wasting water. Simply cover your pool with this pool heater when you are not swimming and keep your pool covered to reduce the amount of water lost. ▶ It is also very convenient to use and store: This solar heating blanket is made of PE, which is safe and environmentally