Features: Protect your aboves ground pools from winter ice expansion with this durability cold resistant PVC pools pillows, features a 0.4mm thickness and double seal technology to prevent air leaks and tears. Engineered to withstand extreme temperatures from 10°F to 180°F, this 4ft x 4ft inflatable pools covers pillows includes a 50ft rope for secure anchoring during harsh winter conditions. Ideal for aboves ground pools owners in cold climates seeking reliability protecting against ice damage, debris buildup, and potential pools covers collapses. Use during winter pools closure to evenly distribute weight under covers, preventing snow accumulation and minimizing stress on pools wall from freezing temperatures. The included heavy type rope allows customizable installation, ensuring stability while maintaining optimal air pressure (70 80% capacity) for year round pools preservation. Specifications: Color:Two Choices Dimension:120x300cm/47.24×118.11in Component:plastic Package Includes: 1Set Inflatable swimming pools pillow note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.