Features:1. The inflatable pool pillow is made of high-quality PVC material, which is not easy to break, can be used for a long time, and is durable.2. The pool pillow can protect the above-ground pool wall and pool cover from the pressure caused by ice expansion. Our pool pillows will generate surface tension and make your pool freeze in the opposite direction, that is, from the outside to the inside and from the inside to the outside. This prevents the ice from expanding along the pool wall.3. Designed to withstand the cold winter temperature, which can prevent ice from expanding along the pool wall.4. Easy to use: easy to inflate and deflate, simple and convenient.5. The reinforced grommet at the corner can fix the pillow in the center of the pool. Just put the rope through and tie the pool pillow to the pool. Notice:1.Actual color may be slightly different from the image due to different monitor and light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: PVCSize: 110*110*60cmColor: Blue