Here is a window fur channel weatherstrip kit for your 55-57 Chevy BELAIR 4-DOOR SEDAN. This kit is not for 150's or 210's. This is the best kit on the market today. Made by Re-Pops. The kit includes all 14 pieces needed to do the job right. All upper and lower channels are included. Daily window use has usually worn those old fur channels to the point where the windows are loose and may even rattle. This kit contains all of the parts you need to completely replace you window channels. This is a part you will be very happy with. Don't settle for cheaper kits that are out their, this really is the best kit around.