This is the VERTICAL Rubber Window Channel for 1925-1938 Chevrolet, Buick, Pontiac, Oakland, Oldsmobile, Cadillac, Durant and other GM makes. It is an exact copy of the original. This channel is rubber with felt flocking and is sold by the foot. Used on all Fisher Body cars from 1925-1932 (except Cabriolet & Landau Phaeton). Fits into a metal guide channel and is held in place at the top of the window with nails or screws. It is also used as the lower run channel through 1938 passenger models. Rubber is 7/8" wide x 5/8" tall with 5/16" opening for glass. Used as rear window channel for all coupes with roll-down rear window. Compare to original before ordering. Most Fisher closed bodies except those using stainless beaded channel. Not for metal edged windows. See also 70-306 for channel for the top of each window. Approximate Measurements for: 4-Door takes 28 Ft. for all 6 side windows Coupe takes 14ft. for side windows and back roll up window 2-Door Sedan takes 20ft. for side & rear quarter windows CONFIRM MEASUREMENTS BEFORE ORDERING! This item is not returnable as it is cut to length per your specifications.