Cold resistant material: These pool pillows use specially designed materials that withstand low temperatures, ensuring continued functionality and effectiveness throughout the winter season. Effective winterization: Specifically for above ground pools, these pillows prevent water from collecting under the winter cover and help protect the pool walls and liner from winter damage. Easy installation: The user friendly design allows quick setup in your above ground pool, streamlining the winterizing process. Use scenario 1: Prepare an above ground pool in a region with freezing temperatures by placing the pillows under the winter cover to minimize water pooling and reduce cover strain. Use scenario 2: Maintain protection during multiple freezes by relying on the pillows' cold resistant material to preserve performance and prevent damage to the pool structure. Use scenario 3: older or worn pillow sets at the end of the season to ensure consistent winter protection and facilitate a faster, smoother opening next season.