Rhino Pad 27-Foot Round Pool Liner Pad for Above Ground Swimming Pools | Prevents Punctures | Easy to Install Pool Liner Fabric | Made of Strong Eco-Friendly Material | Extends Life to the Liner PROTECT YOUR LINER - This pool liner pad is made from a special cloth fiber that is thick and durable. Defend your liner against cuts and punctures from rocks, roots, nutgrass, glass and other harmful debris found on the ground. It will provide a flat base that gives an extra layer of armor for your swimming pool floor bottom prior to liner installation. ABOVE GROUND POOL PAD  The liner guard creates a vapor barrier on the bottom of the pool to eliminate water from corroding the metal components for steel-walled above ground swimming pools. It will give your pool floor a subtle layer of cushion and padding, making a soft pool bottom below your feet, while also protecting the liner from potential damage. Also, works ideally when placed on grass or concrete under pop-up pools for an additional protection. FITS YOUR POOL SIZE  There is no need for tape or additional materials to install this Rhino Pad. It is pre-measured for your specific swimming pool size. If you have a round, oval, or irregular pool size or shape, the liner guard can easily be trimmed to fit your needs. ECO-FRIENDLY AND DURABLE  Made of strong earthy woven material, the liner shield is a resilient geotextile fabric composed of 45% post consumer and 45% industrial recycled material that permits moisture to safely pass through making it mold and mildew resistant. It may resemble felt with its  of an inch thickness, but the performance is beyond exceptional in protecting your investment. LONGER LINER LIFE - Preserve your pool liner and extend its life span with the help of Rhino Pad. Its high density and low compression construction qualities help create a resilience to all sorts of invasive elements, protecting your liner while ensuring you get the most out of your swimming pool.