Prevents water from freezing on pool covers: when placed under the tarpaulin, inflatable cushions push the water surface away from the cover, helping to keep the tarpaulin dry and reduce freezing on the cover. Quick inflation and deflation: cushions inflate and deflate rapidly for fast setup and removal. Easy to install: use the included rope to secure the cushion; thread the rope and tie to the pool and the reinforced eyelets for a secure hold. Enhances cover performance: creates surface tension across the cover, protects the pool wall, and reduces accumulation of rain, snow and leaves on your winter covers. Designed for ground pools: specifically built for ground pools and fits almost all ground pool configurations. Practical use scenarios: Winter protection for most ground pools: place under the tarpaulin to minimize ice formation and cover damage. Rainy or snowy seasons: reduce water pooling and debris accumulation on the winter cover. Easy seasonal setup and removal: quick to inflate, secure, and take down when opening or closing the pool. Key attributes to note: inflatable cushion; includes anchor rope; reinforced eyelets; compatible with most ground pools; fast inflation/deflation; improves cover protection and reduces debris on winter covers.