This is a Flexible Corrugated Steel Channel that is cloth covered and mohair lined. This is a 7/8" wide channel for 1947-1950 Chevrolet & GMC truck door windows with no vent windows that have metal trim on the edge of the door glass. 90" strip - one required per door. See manufacturer's installation video: Click here to viewReplaces GM# 3684434. This part is oversize and special freight charges will apply. Call or email us for a freight quote.