CobraTec Pen Fixed Blade Knife Camo 1410074. Just twist the handle to extend the pen point of pull apart to reveal the 2.5 inch stainless steel blade. The blade is housed in a durable aluminum pen casing and it is 5.625 inch in overall length. Lifetime warranty Specifications for CobraTec Knives Pen Knife 1410074: Manufacturer: CobraTec Knives Color: Camo Features of CobraTec Knives Pen Knife: 4 ounces Have that extra measure of self defense in hand 2.5 inch concealed stainless steel blade Durable aluminum pen casing Contains black ink 5.5 inch total length Package Contents: CobraTec Knives Pen Knife