Armour Shield Protects Your Pool Liner: This 24-foot round heavy-dut 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. This pad is suitable for both soft-sided and hard-sided