all the 16 pieces file are made by Steel, the long lasting teeth were deeply milled tempered and coated for cutting and filing performance 16 pieces file set comes with 4 large files - flat/Triple-cornered/half-round/round file and 12 pieces precision needle file 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 of files will allow you easily and enjoy woodworking size:34*13*4cm Material:steel colour:Orange Package Contents: 4 * large files 12 * small files 1 * brush 1 * kit Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.