Auction is for 1 piece. B-LINE STYLE STRUT POST BASE HOT DIP GALVANIZED B280SQ-HDG. Strut Post Base, Single, Steel/Hot Dip Galvanized Item #: 269558 Cat #: B280SQHDG UPC: 781011571511 Strut Post Base, Square, Single Strut, 6 x 6 x 3-1/2 Inch, Steel/Hot Dip Galvanized Finish, For Use With B22 Single Strut 1-5/8 x 1-5/8 Inch