Most often I also use the bubble wrap and padded envelope. Since you are here in the USA if you ship with the United States Postal Service ask for tracking as it’s free and it’s a really nice option so that you and who ever is receiving the razor can know where it is!

Another option for added protection is to put the razor in an old coffin case, then wrap in the bubble wrap.

I had to ship seven razors out to a member the other day and I used a shipping box from when I’d received a razor from a well known restorer/honer, I still individually wrapped each blade in paper towel and used tape to hold it in place and then wrapped the group in bubble wrap before placing in the box.