Mainstays Sand Dune 7-Piece Patio Dining Set for $249.00. Select in-store pickup at Walmart to save on shipping. Otherwise, shipping is $12.97 for a total of $261.97 shipped. Here is a screenshot for reference. The patio dining set has powder-coated steel frames and polyester sling fabric, and includes one table with tempered glass top and 6 chairs.