Size: 5 ft x 5 ft square Description A heavyduty aboveground pool liner pad designed to protect your pool liner, reduce ground irregularities, and block light to prevent grass and root regrowth. Made from thickened black industrialgrade geotextile fibers blended from polyester, acrylic, and cotton. Key benefits Robust construction and durability: 1.5 times thicker than similar pads and weighing twice as much as competitors of the same size for puncture resistance and long service life. Light blocking and root suppression: Double density fabric is effectively impervious to light, preventing grass and roots from regrowing under the pool and helping maintain a smooth, grass base. Seamless comfort: No center seam delivers a flat, comfortable surface underfoot and under the pool liner. Honest cushioning: Provides limited floor cushioning compared with sponge pads. Designed primarily for protection and durability rather than soft padding. Simple installation and compatibility: Soft, smooth surface suitable for grass, gravel, concrete, and other common base types. Can be laid directly on gravel without the need for fine sand. Heat insulation: Helps shield feet from hot outdoor floors and keeps the pool liner cooler during sunny weather. Materials and performance Composition: Thickened black geotextile fibers made from polyester, acrylic, and cotton. Size: 5 ft x 5 ft square. Performance: tear and puncture resistance, double density for light blockage, no center seam for even coverage, limited cushioning compared with spongetype underlays. Use scenarios Backyard aboveground pool on lawn: Lay the pad between grass and the pool liner to stop grass and roots from growing back and to provide a flat, seam surface. Gravel base installation: Place the pad directly on a gravel floor without spreading fine sand first to protect the liner from sharp points and stabilize the base. Concrete or patio setup: Use under the pool liner on hard surfaces to reduce heat transfer and protect the liner from abrasion while maintaining a lowprofile pad. What this pad is for Protecting aboveground pool liners from punctures and surface irregularities, blocking light to prevent grass regrowth, and providing a stable, seam base. It is built for durability and practical protection rather than plush cushioning.