Ground Shield Protects Your Pool Liner: This 12-foot x 24-foot rectangle, heavy-duty, extra-thick pool liner pad safeguards your above-ground pool liner from punctures, tears, abrasions, and rips caused by rocks, roots, glass, and other sharp objects. It extends the liner's lifespan and reduces the risk of damage and costly replacements. The pad also provides a thin layer of cushioning underfoot, making the pool more comfortable to walk on. Extra-Thick Above-Ground Pool Pad: This durable, long-lasting pool liner pad is made of heavy-duty, extra-thick, 220-gram, non-woven geotextile fabric material that acts as an effective weed barrier, preventing weeds from growing through the pad and into your pool, keeping your pool water clean and free of debris. Easy to Install: Simply place the pad on the level ground where your pool will be installed, ensuring it extends slightly beyond the pool's edge. Cut the pad to size with a utility knife for a custom fit around your pool.