Bip39 metal http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf The purchase of the mnemonic phrase issues. In the event you mess up the buy then You can not Recuperate your wallet. All of your resources will probably be dropped eternally. Make sure you have a proper backup. Want to examine which wallets guidance the BIP39 mnemonic https://allkindsofsocial.com/story5583558/bip39-ozon-bip39-checksum-an-overview-https-linktr-ee-bip39