Fountain pen with frosted ink bag, available in black or blue barrel colours, supplied with a choice of 0.38mm or 0.5mm nib for writing and sketching, measuring 13.8cm in length and 1.1cm in diameter.
Fountain Pen with Frosted Ink Bag and Choice of 0.38mm or 0.5mm Nib Sizes

This fountain pen provides a functional writing tool with defined specifications for those seeking a straightforward instrument. The pen is characterised by its frosted ink bag feeding system and a plastic construction, offering a lightweight feel. It is offered in two nib sizes and two barrel colours, allowing for a degree of personalisation based on writing preference and style.
Features and Construction

The pen's design centres on its core mechanical features and physical dimensions, providing clear parameters for potential users.
Material and Build
The pen's body is made from plastic, as specified in the source text. This material choice contributes to a lighter overall weight compared to metal-bodied pens. The build includes a frosted ink bag, which is a component of the pen's internal ink reservoir and feed mechanism.
Size and Practical Fit
The exact dimensions of the pen are 13.8cm in length and 1.1cm in diameter. This size makes it suitable for standard pen cases and comfortable for most hand sizes. The defined thickness of the barrel provides a specific grip diameter for the user.
Uses and Placement

With its dual nib options and simple design, this pen fits into various everyday and personal writing contexts.
Event or Professional Use
Its functional design makes it suitable for use as a general-purpose writing tool in office environments or educational settings. The availability of two nib sizes allows users to select a finer 0.38mm nib for detailed notes or a broader 0.5mm nib for bolder, more legible writing.
Everyday Home Use
At home, this pen can serve for journaling, casual letter writing, or personal planning. The choice between a black or blue barrel offers a basic colour selection to match personal stationery or preference.
Benefits and Buying Value
The value of this product lies in its defined specifications and the practical choice it offers between two common nib widths.
Reuse and Low Maintenance
As a refillable fountain pen with an ink bag, it can be reused by refilling with bottled ink, which may offer a lower cost per page over time compared to disposable pens. The plastic body is generally easy to wipe clean for basic maintenance.
Why Choose This Product
This pen is distinguished by its precise length and diameter, its frosted ink bag feed system, and the specific choice between a 0.38mm and a 0.5mm nib. It provides concrete options for line width preference and colour in a standard-sized, plastic-bodied fountain pen.