I should expect counterfeit product for this price but it was worth giving it a try. Beware of the seller, after submitting photo evidence, he was still insisting that the plugs are genuine - stay away from this person. Had to pick up genuine plugs from local dealership and do a comparison.
Electrode in ebay plugs differs significantly from the genuine product.
Genuine - welded iridium electrode, fakes have whole electrode made out of the same material.
Fake
Genuine
Fake
Genuine on the left
Genuine at the bottom
Genuine on the right - notice that genuine plug has welded piece of the iridium or platinum to negative electrode, fakes don't.