Gorilla Pad 15'x30' Oval Gorilla Floor Padding Cut and Sized to Fit 15ft x 30ft Oval Above Ground Swimming Pool Sits Underneath Your Pool Liner for Added Cushioning and Extra Liner Protection - Extends the Lifetime and Safety of Your Liner and Pool / Cushioning Eliminates Footprints from Forming Extremely Hard to Penetrate - Specially Designed Geotextile / Strong Felt-Like Material Approximately 1/8in Thick Impervious to Cuts from Sharp Objects, such as Glass, Roots and Rocks, Virtually Eliminating Vinyl Liner Bottom Leaks! Padding is Cut to Size and Seamed to Your Above Ground Pool- No More Cutting and Taping as with Foam!