Features and Benefits: High quality, industrial grade, professional set; Made with Eklind Alloy Steel; Heat treated for optimum strength and ductility; Finished with Eklind Black Finish to resist rust; Eklind T-handle hex keys provide extra reach and extra leverage; Includes sizes: 2mm, 2.5mm, 3mm, 4mm, 5mm and 6mm, 8mm and 10mm. Loop-style T-keys stack neatly and fit in a compact pouch to fit most easily in your tool box. Made in the U.S.A.