Here is a link says they are $5 each with no S&H. I use to have one that I bought when I lived overseas, but when I went to a funeral in Canada it was considered illegal to have in their country so it was taken away from me. I bought 2 files today using paypal can't wait to get them ... they are the best for finger nails as well as using to keep pins sharp!
These natural nail files are made from scales of the gigantic "Paiche"/"Arapaima", fish from the waters of the Amazon Peruvian jungle.
http://altipana.bigcartel.com/product/organic-nail-file