LONG LASTING TEETH Precision Milled Tempered & Coated For Durable Cutting & Filing Performance EXTRA STRONG TOOL The Black Color Is A Natural Result From Higher Carbon Content & Tempering BEST ASSORTMENT FILESET Shapes, Sharpens & De-Burrs Hobby Models, Jewelry, Wood & Soft Metal. Especially great for woodworking and metalwork enthusiast such as gunsmith or hobby modeling NONSLIP HANDLE CONSTRUCTION Better Control & Handling Both Wet Or Dry w/ Contoured Ergonomic Handhold 365 DAY MONEY BACK GUARANTEE! Oh yeah, they are that good!