All the files are made of Steel, the long-lasting teeth were deeply milled tempered, and coated for durable cutting and filing performance. All files are packed in a rugged, compact carry case for storage and portability. Each tool fits snugly into its respective place to prevent moving around and scraping Long and soft handle - rubbery handle with long length to bring your comfortable handling that will allow for hours of use Buy with confidence - handy tool bag with a wide variety of files will allow you easily finish and enjoy woodworking