Introducing the Black OTF Pen Knife - a premium multi-functional tool combining a sleek design with robust durability. Perfect for opening letters or slicing small objects, this pen features a sharpened blade at both ends and a built-in safety mechanism to prevent accidental discharge. Limited edition with an extra ink cartridge included. Ideal for EDC and self-defense. Blade Length: 1.7 in Pen Length without blade: 6in Extra Ink Cartridge Double Action Blade . MUST BE 18+ AND KNOW LOCAL AND STATE LAWS BEFORE ORDERING