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Retractable oil-based ballpoint pen. The best feature is a retractable ballpoint pen on the thinnest axis in the world.
The total length of 0.4 inch (9.1 mm) x maximum diameter 0.2 inch (5.2 mm), and the total length is about the same length as business cards. Unknock activated by side button
The tip is narrow as a needle point. The ink is an improved oil-based ink that is lower viscosity and smoother and produces crisp lines.
Comes with a convenient holder (W60 mm x H91 mm) for portability. Business card size allows you to insert it into a business card case or notepad as a bookmark and always carry it with you.
This unique ballpoint pen is useful for emergencies.
Please use auto R-4C5NP croodile refills. Other products may not fit the product.
If you lose the spring inside the main unit and the adapter attached to the top of the core, it will not be able to knock it, so be careful not to lose it.

From the Manufacturer

Description

Comes with a convenient insert holder that can be inserted into a business card holder, wallet or notepad.

Specifications

Size: Total length 3.6 inches (91 mm), Shaft diameter 0.1 inches (3.7 mm), Maximum diameter 0.2 inches (5.2 mm).

Weight: 0.1 oz (3.1 g).

Material: Shaft: Aluminum; Clip: SK wood; Base / Knock Part: Brass

It is smaller than a toothpick, so it is not easy to grip and is not an issue, but it is not an issue because it uses a different operation (mentioned below) than a regular pen.

It is a little larger than normal point cards.

Note that one of these pens is not noticeable but a big feature is that the tip is a needle point.

The tip is also used in HiTEC with a ultra-fine PILOT nib, which is not rare in the water based and gel ink, but the pen is really rare with permanent pens.