IMO you were talking about Tangem cards instead, as far as I know, they use to be the first to launch this kind of magnetic NFC cards, other companies has offered similar products after them, but the first and the most known is Tangem https://tangem.com
Why are you looking for this kind of product btw? It's less safe than a hard wallet IMO, and if you want to use it to make an offline transaction your recipient needs to know this technology and to trust it along with you.