Reliable frost protection Protect your swimming pool from winter damage with air cushions designed to work alongside tarpaulins for effective frost prevention during cold months. Prevents accumulation on the cover Made from 18 mm thick PVC, these cushions elevate the pool cover to prevent water puddles and keep it dry throughout winter. UV and weather resistant Engineered to resist harsh weather and UV radiation; maintains integrity even at temperatures up to 20 C for long lasting performance. Easy to use and connect Integrated safety valve compatible with most air pumps for simple inflation; corner eyelets allow connections between multiple cushions as needed. Use scenarios Winter pool protection: place cushions under a tarpaulin to reduce frost damage and water pooling on the cover during cold spells. Seasonal dryness maintenance: keep the pool cover dry during extended cover periods by elevating it above standing water. Large or irregular pool covers: link multiple cushions with the corner eyelets to fit larger or uniquely shaped pools.