Protect your pool from winters harshest weather. These heavy duty vinyl air pillows ride on top of your pools water and under winter cover. The pillow absorb pressure from expanding ice to protect pool walls and collect leaves and debris in one area for easier spring clean up. Our air pillows have reinforced corner eyelets for easy tie down anchoring. We offer air pillows in 2 sizes, 4'x4' and 4'x15'.