Replacement file (it's a panzer file) for the Ski Man Wax Scraper Sharpener.
When you've sharpened enough wax scrapers to dull the blade that came with your sharpener, just slide out spent file & repalce it with this one.
Where was this thing 30 years ago when I was racing and struggling??? Ordered when same item under panzer file name was listed as out of stock. Cuts very fast, great price.