FREE SHIPPING Strong pool liner guard protects liners from rocks, roots and glass! This new liner guard makes old foam floor padding obsolete. Unlike foam, which can be easily cut by grass, roots or rocks under your liner, our liner guard is impervious to almost any sharp object. Liner padding is a geotextile that was developed to protect trash dump liners where any cut would be a catastrophe. Our floor padding is super tough, but also adds a layer of cushioning that will eliminate footprints from forming. All floor padding is cut to size and seamed for your pool. No more cutting and taping as with foam. Virtually eliminate vinyl liner bottom leaks. Does not stop nut sedge. Select the size that fits your pool.