Just had a look, Unless you have already taken the shims out they are just the shims used to set the clearence.
They are only a few bucks each, and will need to be changed with the new cams anyway.
Just a pain in the ass to do.
Need to measure current clearence on all cam lobes, remove cams and shims, measure the thickness of the shims and order thicker or thinner shims to get the clearence you need.