PART #22931 '68-'72 Chevelle/Malibu POLYCARBONATE Door Windows, 1/8" Std pair (Hardtop) Specify stock doors or Harwood fiberglass doors when ordering. Some minor trimming may be needed for proper fitment. POLYCARBONATE WINDOWS ARE CUT TO ORDER OUT OF FLAT SHEETS AND ARE NON-RETURNABLE. If you have any questions call 800-822-3392.