Buick Invicta windshield seal will fit 1961 2 door 4 door hardtop, this windshield seal fits various models including 2dr Bubble top. Does not fit convertibles. This gasket works with chrome trim (not included) with molded corners. Made from ozone resistant EPDM rubber and from the same OE specs as the original for an authentic fit and finish. "This item is designed to be installed during glass replacement. Precision recommends contacting a professional auto glass technician for installation." Great replacement, New from Precision Replacement Parts, Thanks for Looking!