Hello,
from various information sources, by summary concludes the current seed phrase storage as best:
2 of 3 multisig.

My understanding is a seed phrase will have 24 words.
These 24 words are then engraved onto 3 stainless steel hexkeys, so when 2 of these hex keys are brought together, the 24 words are revealed.
Then the user needs to enter the passphrase to fully recover the wallet.

So, is there a cold wallet with the software to make the multisig, as I don't know how to 'split' the 24 words into the 3 engraved stainless steel hexkeys?