Yes, all backups on steel. I considered getting a SeedHammer, which engraves everything for you including the descriptor, but decided to just do it manually since using the engraver has some potential risks associated with it and also is expensive. I may still get the SeedHammerII for the purpose of engraving the descriptor only, which gives you a metal backup of that without having to put any seed information into the machine. For the seeds, I decided to use the Blockmit Jig with generic washers, since it is low cost and you can always buy new washers and an aluminum pod to put them in.