This is our NEW reproduction Federal Aerodynic Light Bar Dome Rubber and Replacement screw kit. So many of these bars are missing the dome seals or have incorrect or missing screws. Included is 9 feet of molded rubber seal that has the correct size bead to install it in the factory seal groove, and a molded lip to seal the domes. And 4 Stainless Steel 1/4 -20 Slotted Truss Head Screws just like the originals for the end caps. This is enough to do both domes on 48" or 54" Aerodynic. You will have to cut at the lengths you need for front and rear. We have had these produced by a leading rubber manufacturer in Northern Ohio they are a ISO9001 approved manufacturer. We have researched any improvements on the original gasket and with todays hi-tech rubber extrusion methods incorporated them into our product made of long life EPDM rubber. The fit is actually better than original.  Any questions send a message. Thanks Gary