PROTECT YOUR POOL DURING ALL WINTER: Our pool pillow creates surface tension which effectively protects above-ground pool walls and pool covers from pressure caused by expanding ice. This prevents expanding ice along side your pool walls. DESIGNED TO WITHSTAND COLD WINTER: This 4 ft Winter Pool Pillow is made from ultra strong & durable, cold-resistant PVC material. It provides plenty of support and durable material to last All Season. GREAT PROTECTION: Air pillow absorbs freezing water as it expands. Relieves above ground pool walls from stress of ice expansion. Helps reduce the build-up of rain, leaves or snow on your winter cover. STAYING IN PLACE: Just slip the included rope through and tie the pool pillow to your pool and the reinforced grommets at 4 corners around the pillow to keep the pillow in position at the center of the pool. INFLATE & DEFLATE EASIER: We chose double fold valve, which allows inflating and deflating much more faster without lossing of air. Works seamlessly with most blower. Foldable desin, easily roll it up to storage. Colour:blue Material:PVC Size:Pillow: 1.2 x 1.2m, rope: 5m, patch: 5 x 5cm Package Contents: 1 x Inflatable pillow 1 x patch 2 x 5m rope