Made from 1.6mm thick 304 Stainless Steel, the CodlCard 12s is built to withstand fire, water, corrosion, and crushing so you never have to worry about losing your bitcoin.
The CodlCard 12s enables to you record one 12 word, BIP39 recovery seed as well as an 8 letter note, quickly and permanently.
Our grid innovation saves space and improves the read and write-ability compared to a traditional column and row.
All of our cards and keys come with instructions that show you how to easily punch your seed words as well as temporary seed cards.
We recommend using a automatic center punch tool like the one we sell. We adjust it and test it before shipment to make sure that it makes the best possible mark.