{DURABLE CONSTRUCTION} Crafted with heavy duty, puncture resistant material, our air pillows are designed to withstand the harshest of winter conditions, ensuring continual protection of your pool. Easy to wipe down, deflate, and store also.{SMART POOL INVESTMENT} By reducing pressure on pool walls and keeping your cover clean, these air pillows help lower overall costs to maintain your pool, a smart investment for every pool owner.{EFFORTLESS INSTALLATION} With a large valve opening for easy inflation, these air pillows simplify and speed up your pool winterizing process, letting you secure your pool quickly and efficiently. When ready, it easily deflates for storage.{SUPERIOR WINTER PROTECTION} air pillows serve as 'ice compensators', absorbing the pressure from freezing and expanding water, ultimately protecting your pool and cover from winter damage. Ensure your pool is protected during the offseason!{PEACE OF MIND} With 's Deluxe Air Pillows, enjoy a worry-free winter knowing that your pool is well-protected.{ENHANCED POOL COVER LONGEIVTY} Air Pillows stay under your cover, creating space that prevents water & debris accumulation in the center of your pool, extending the lifespan for your pool cover, saving you replacement costs and time.{TAILORED FIT} This Air Pillow measures 4.5 x 15 ft, one of the standardized, most effective sizes for pool winterization, but our air pillows come in many shapes and sizes to accommodate all preferences. Mix models to your liking!