THIS IS FOR A NEW PAIR OF 1955-1956-1957 CHEVROLET HARDTOP, CONVERTIBLE, NOMAD DIVISION BAR CHANNEL STOPS.THIS PART IS OFTEN MISSING OR WORN OUT AND REPLACING IT WILL RETURN STABILITY TO THE WINDOW IN THE ROLLED UP POSITION. MOUNTS TO THE TOP OF THE VENT WINDOW FRAME IN THE DIVISION BAR. SKU #2625