Features: Winter Security Upgrademail: Produced from crowded PVC, this pool protect pillow proposals extraordinary cold resistance. Easy Installation Planumberebog: Developed for quick arrange and coverage lacking tools, this swim pillow saves time and effort. Impermeable Ground Pool Pillowidthelhello: Highlighting a 4cm widened two layer sealing technology, this air filled pillow prevents leakage and disperses ice and snow pressure on pool partitions and covers, avoiding wall cracks and protect collapses. Upgraded Double Port Air Gatemail: Hard wearing advanced double port air gate, this swim pillow ensures better sealing. Practical Utilization Tiedit: Avoid over inflation otherwise stress gas; avoid from infernos otherwise ; store creased in a flat, shaded area when not in use; stop excessive resistance otherwise pointed objects; and note that natural air leakage is normal. Specifications: Substancemail: PVC Sizemail: 120x450CM Attributemail: Blue Technical parametersecond: Cold immune temperature 20°C | immune UV50+ Circumstances of usemail: Family pool | Outdoor pool | Hotel pool Practicality: Effectively stop debris from entering pool, keep the water quality neat, while reducing heat loss and saving heating expenses. Package Includes: Winter swimming pool covers pillow main body × 1 Line note: Before using the accessory, please check if it is compatible.