These carbon steel files are designed to efficiently remove burrs, resulting in a smooth finish. They are compatible with a wide range of materials including steel, brass, copper, aluminum, pewter, silver, gold, plastic and wood. Packaged conveniently in a storage case, they also come with an angled file block for added convenience.Details:Comfort grip handlesCompatible with wide range of materialsCarbon steelContents:5 needle files (flat, square, half round, three square and round)1 angled file blockStorage case