Pen Knife Disguised Folding Blade 5.38 In Overall, 2.13 In Blade – Functional Ink Pen, 5 Colors, Pen Cap Safety, Black, Silver, Gold, Red, Camo

A Pen That’s Also a Knife

The pen knife concept is simple enough: it looks like a pen, carries like a pen, and if you need a blade, you’ve got one. The ink cartridge is functional — this isn’t a fake prop with a cap glued on. You can write with it. When you need the blade, the pen separates into two halves at the middle and the 2.13-inch blade is exposed. No folding mechanism, no button — just pull it apart.

At 5.38 inches overall and 0.06 lbs, it fits in a shirt pocket, a notebook loop, a purse, or anywhere else a pen goes without drawing attention. The pen cap covers the tip when assembled. Five color options give you some choice in how it looks — Black and Silver are the most naturally pen-like; Gold, Red, and Camo are more distinctive if that’s what you want.

Who This Pen Knife Is For

People who want a small blade on them without it being obvious they’re carrying a knife. That covers a wider range of situations than you might think. Office environments where a fixed blade or folding knife would be out of place. Travel situations where you want something discreet. Anyone who regularly needs a small blade for everyday tasks — opening packages, cutting cord or zip ties, general utility — and wants to keep it in a pocket rather than on a belt clip.

The writing functionality matters practically. If you have a pen in your hand or on your desk, no one gives it a second look. That’s the whole point of a disguised design — it’s just a pen until it needs to not be.

Worth noting: this is a short blade, not a large fixed knife. If you need a heavy utility blade for outdoor work, this isn’t the right tool. It’s a compact, discreet option that trades size for concealability.

How It’s Built and How It Works

The pen knife is constructed in two halves that connect at the center. In pen mode, it looks and functions like a standard ballpoint pen — the included ink cartridge means it actually writes. The pen cap protects the writing tip. When you separate the two halves by pulling them apart, the blade is exposed. There’s no mechanical folding action, no spring assist — it’s a straightforward pull-apart design, which keeps the mechanism simple and reliable.

The 2.13-inch blade length is in the range of many everyday carry knives. It’s useful for general cutting tasks — box opening, food prep in a pinch, cutting cord or packaging — while being short enough to carry without the profile of a larger folding knife. The overall 5.38-inch length when assembled matches a standard full-size pen closely enough that it doesn’t look out of proportion in a pocket protector or shirt pocket.

The pen cap acts as a passive safety — when the pen is assembled and capped, the blade isn’t accessible without deliberately pulling the two halves apart. It won’t accidentally deploy in a pocket or bag.

Practical Details

Overall length: 5.38 inches. Blade length: 2.13 inches. Weight: 0.06 lbs. Width: 0.38 inches. Knife type: disguised. Safety: pen cap. Includes functional ink cartridge. Available in Black, Silver, Gold, Red, and Camo. Check local laws before carrying — blade length regulations and concealed carry rules for knives vary by state and municipality.

A pen knife earns its place by being the one you’ll actually carry every day without thinking about it — because as far as anyone knows, it’s just a pen.

Frequently Asked Questions