Made of extra durable base material hard SK5 steel blade and rust resistant with a thick and sharp blade for a long time using. It comes lightweight and small enough for easy to carry around in the pocket, belt pouch, tool kit, or shirt pocket. Ideal for Thicker Cutting: Boxes, Drywall, Roofing, Leather, Cardboard, Rubber and more and more. Also used for Art and craft cutting Thick paper, balsa wood, cardboard, fabric , mat board etc