Ground Shield 16-Foot x 32-Foot Oval Heavy Duty Pool Liner Pad for Above Ground Swimming Pools, Protects Pool Liner Prevents PunctureGround Shield Protects Your Pool Liner: This 16 foot x 32 foot oval, 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