I use a bamboo wok scrubber for cleaning built up debris on my carbon steel pan ( cowboy pan ) may be as old as late 1800's it's at least from the early 1900's.

I use a bamboo wok scrubber for cleaning built up debris on my carbon steel pan ( cowboy pan ) may be as old as late 1800's it's at least from the early 1900's. I can't find this type of wok scrubber anymore . . if anyone knows where they sell them?