Listing is for a complete set of 4pcs top blue 14mm O-rings and 4pcs bottom green O-rings for Bosch ev14 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 Bosch ev14 injectors with the same top and bottom O-ring configuration.  (FUEL INJETOR IS NOT INCLUDED IN LISTING)