1. Sturdy PVC Construction: Made from durable PVC material, this pool pillow withstands harsh seasonal conditions while maintaining its integrity. With thickness options of 0.18 mm or 0.27 mm, it provides reliable support for your above ground pool in both summer and winter. 2. Prevents Water and Debris Accumulation: Strategically placed under your pool cover, this inflatable pillow creates a raised center, allowing rainwater and fallen leaves to slide off naturally instead of pooling on . This helps prevent damage to your pool cover and extends its lifespan. 3. Quick and Easy Installation: Simply inflate, place in the center of your pool, and secure with the included ropes. The straightforward design makes seasonal pool preparation fast and hassle , saving you valuable time and effort when winterizing your swimming pool. 4. Protects the Pool Liner: The thick, buoyant structure creates space between the water and the cover, reducing pressure from ice formation in freezing temperatures. This helps safeguard your valuable pool liner from potential damage and extends the lifespan of your swimming area.