PondH2o LDPE Pond Liner for All Budget Pond Applications, 33MIL, 19' 6'' x 13'1' 9' 8'' x 13' 1'' LDPE (Low Density Polyethylene) Material 0.33 Mil Thick Black Color Great Tear & Puncture Resistance & Fish Safe 10 Year Guarantee Against UV Damage Ideally Suited for Broader Shaped Pond as Intricate Shapes may Cause Issues Folding