Pen Knives are actual pens that could save your life. They look like an ordinary pen, but feature a 2.13 inch blade that is revealed by pulling the pen apart.

440 stainless steel, one-handed opening, folding knives. All folding knives come with belt clips.

These 5 inch (closed) Butterfly Knives have 440 stainless steel blades and cast metal handles. Very durable. All butterfly knives measure: Open 9" -- Closed 5.25" -- Blade 4.5".