This Mesh Rectangle In Ground pool Winter Cover keeps your family and pool safe during the off-season. Keep unwanted debris and critters from getting into the swimming pool when it's not in use. Optional Center End Step option. Available in Blue or Green. ***Order Cover per your Exact Pool Size – Cover comes with 2ft extra overlap to allow for deck installation. Cover will be 2ft Larger than Ordered Pool Size. If your pool is 16’x32’ – Order 16’x32’ & Cover will measure 18’x34’. If your pool is 18’x36’ – Order 18’x36’ & Cover will measure 20’x38’. If your pool is 20’x40’ – Order 20’x40’ & Cover will measure 22’x42’. (not including optional Center End Step)