What are small gold colored "caps" that came in bag with perfect path products?


I recently upgraded my Pre/amp/CD player and cables so I'm just now getting around to evaluating some perfect path products I bought.  In the bag with alpha e cards and thing you plug into outlets are several small gold colored objects looks like a cap to something, but it is not obvious what.  Anyone know what these are ?

Thanks for your time.
berner99

Showing 1 response by three_easy_payments

"is anyone suggesting something other than RFI/EMI rejection is going on here?"

Yes because they are:

"...treated with some of their magic type stuff."