Listing is for a complete set of 6pcs top blue 14mm O-rings for Bosch, Lucas, Siemens Deka, FoMoCo, Delphi and many more  fuel injectors. Not aftermarket Chinese O-rings. They are the original O-rings used on the Bosch ev14 fuel injectors. The O-rings will also fit many other injectors with the same top and bottom 14mm O-ring configuration.  (FUEL INJETORS IS NOT INCLUDED IN LISTING)