Key benefits Durable winter pillow: made from 0.60 mm thick vinyl with density, thickened coldweather material to withstand cold winter conditions. True size that fits: true 4 ft by 4 ft footprint provides reliable coverage and consistent performance. Easy, rope setup: no ropes or grommets required for use. Flexible installation options: fix the pillow in the center with our peelandstick flexible patches, or create holes at any corner to secure as needed. Improves pool care in offseason: elevates the pool cover to a height above the pool sides so rainwater drains off, helping keep the pool drained and cleaner throughout the offseason. Specifications Size: true 4 ft x 4 ft Material: density thickened coldweather vinyl, 0.60 mm thick Durability: designed to endure cold winter hours How it works The pool pillow lifts the pool cover away from the water, creating a space for rainwater to drain off rather than pool on of the cover. By keeping water off the cover, it helps maintain a drained, cleaner pool during the offseason. Use scenarios Scenario 1: Winterizing an outdoor pool with a cover in cold climates, reducing water pooling on the cover. Scenario 2: Centerstabilized setup using peelandstick patches for a secure, clutter center placement, with optional corner holes for additional securing if needed. Scenario 3: Longterm offseason protection, ensuring rainwater drains away and the pool remains cleaner and easier to maintain when the pool is not in use.