The Ronsta Utility Knife is hard working and long lasting.With a heavy-duty metal construction, this utility knife offers a retractable blade along with three positions depending on how much blade is required.A built-in compartment within the handle allows for storage of replacement blades. The handle design makes any general task easy and is a great all-round knife for most cutting applications.Japanese SK-5 Steel, long lasting.Three blade positions.Form-fitting handle for ease of work.Zinc-alloy body.Can accommodate most utility blades.Ambidextrous.REPLACEMENT BLADES: KB001-100, KB001-10, KB009-10.APPLICATIONS: General Cutting, Film, Leather, Cardboard, Film, PlasticQty/Pack 12.Qty/Carton 96