Smith & Wesson Folding Pen Knife SW1122571 Overall Length (Open): Approx. 19cm Overall Length (Closed): Approx. 15cm Blade Length: Approx. 4cm Blade Thickness: Approx. 2mm Weight: Approx. 52g Blade Material: Stainless Steel Compatible Refills: 4C Standard Refills This is a folding pen knife made by Smith & Wesson, the largest firearms manufacturer in the United States. It's a stationery item that combines a small blade and a ballpoint pen. The knife is a folding type with a liner lock mechanism, allowing you to enjoy the details of a full-fledged folding knife. The pen tip can be extended and retracted by twisting the body. The body is made of aluminum with a plated finish. Despite being made by a famous firearms manufacturer, it's a stationery item that can be used daily, making it a great gift for military fans and others. I purchased this but am selling it because it was different from what I imagined. *It has been opened, but it is unused. Please feel free to ask if you have any questions.