Cryptosteel Capsule helps you to keep your Recovery seed offline, securely and without third parties.
Built of solid metal designed to withstand very strong stresses, it works with the main algorithms of generating and sharing keys.
Supports up to 123 ASCII characters to get random passwords with numbers and symbols. It is also sold with various separators that increase the possibility of containing various Seeds.
The plates are engraved in depth using a very simple character which makes it comfortable and easily readable by anyone even after many years.
A very interesting feature is the Shamir Backup to split the seed among more people.