stock here: although I have talked about it several times, even some deep dive, I have not completed all of my EMP CME ready plans.
Here is just one source of information, they kind of sell it too hard, which makes me suspect. $79 for 3.5′ x 15′
I like the idea to shield from my 5G electric meter that is right outside the wall where my main office is.
A search on Ebay turned up many products, I actually bought 2 here, and it was better value per SF than the “hard sell” above.