Monami 153 Black Review: A Full-Metal Hexagonal Ballpoint Worth a Look

Introduction

Monami is a popular Korean stationery brand known for everything from mechanical pencils and ballpoints to a wide range of art materials. The 153 series is one of its recognizable lines, available in limited colors and several variations, and the Monami 153 Black is the straightforward standard model in the lineup. Priced at around 3,180 yen on Amazon, it sits noticeably above typical mass-market ballpoints, so the question is simple: does it write like a pen that costs that much?

First Impressions: Design and Build

The 153 Black arrives in a die-cut, embossed package shaped like the pen itself, which gives it a small tactile flourish before you even open it. Inside, there is a schematic-style insert printed on pleasantly textured paper, a nice touch that feels more considered than a standard blister pack.

The barrel is a slim full-metal hexagonal body, roughly pencil-width, with a cool metallic feel in hand. The surface finish is matte with no gloss, giving a soft, almost rubberized texture that provides grip wherever you hold it. Everything is finished in gloss and matte black, including the cut edges of the barrel, making this a true all-black pen. The nose cone is slightly long and gently rounded, a distinctive design that leaves room to grip close to the tip.

Refill and Structure

There is no clip on the 153 Black, which means nothing presses into your fingers while writing. The knock mechanism has a crisp, clearly defined click, and replacing the refill works the old-fashioned way: press the small release claw on the side instead of knocking again. It is a simple, familiar structure.

One real annoyance: the metal threads on the nose cone mesh metal against metal, and the texture is gritty and genuinely unpleasant when opening the pen.

The included refill is Monami’s own black 0.7mm in the G2 standard, which means it can be swapped for refills like the Uni Jetstream. The pen measures 145mm long, weighs 14.6g, has a 7mm barrel diameter, and balances toward the front for a planted, low-center-of-gravity feel.

Writing Performance

Out of the box, the 153 Black writes remarkably well. The stock Monami refill delivers a smooth, Jetstream-class glide with ink density to match, so there is little reason to swap in another refill at all. Slight tip wobble is present, but it stays comfortably within acceptable range.

Compared directly against the Mitsubishi Pencil VOX, which shares the same simple knock structure but uses an ABS barrel with a clip and costs in the 300-yen range, the Monami is clearly the better writer, even accounting for the large price gap.

Should You Buy It?

The strengths add up nicely: a clean, smart look, excellent writing feel, good balance, a pleasant non-slip grip, and no clip to dig into your hand while writing. The hexagonal barrel and a slightly protruding release button also mean it stops rolling almost immediately, so it stays put on a desk.

The trade-offs are worth thinking about. With no clip, you cannot pocket or hook it onto anything, and the slim barrel will not suit anyone who prefers thicker pens. The gritty nose-cone threads are also a small but real downside every time you change a refill.

Conclusion

The Monami 153 Black is a simple but very easy-to-live-with ballpoint. It is priced a little high and does not project a premium feel, but the full-metal body feels stable, the balance is excellent, and the refill is genuinely great. For anyone who wants an understated, clip-free writer with a solid grip, it is a well-balanced pen that earns its keep.