---
product_id: 618553189
title: "twin pen st Multisystem Pen - Steel"
brand: "lamy"
price: "Rp1183470"
currency: IDR
in_stock: true
reviews_count: 5
category: "Lamy"
url: https://www.desertcart.id/products/618553189-twin-pen-st-multisystem-pen-steel
store_origin: ID
region: Indonesia
---

# Refillable & sustainable Rotary selector mechanism 3-in-1 writing system twin pen st Multisystem Pen - Steel

**Brand:** lamy
**Price:** Rp1183470
**Availability:** ✅ In Stock

## Summary

> 🖋️ Master every note with the pen that adapts as fast as you do.

## Quick Answers

- **What is this?** twin pen st Multisystem Pen - Steel by lamy
- **How much does it cost?** Rp1183470 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/618553189-twin-pen-st-multisystem-pen-steel)

## Best For

- lamy enthusiasts

## Why This Product

- Trusted lamy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Control:** Rotary selector ring lets you switch writing modes smoothly without fumbling.
- • **Ultimate Versatility:** Ballpoint pen, mechanical pencil, and eraser all in one sleek tool.
- • **Compact & Lightweight:** Slim 0.9 cm diameter and just 28 grams—carry sophistication effortlessly.
- • **Premium Craftsmanship:** Brushed steel body with polished accents for a refined, professional look.
- • **Eco-Friendly Refill System:** Easily replace ink and lead to keep your pen performing sustainably.

## Overview

The LAMY Twin Pen ST Steel is a high-quality multifunction writing instrument designed by Gerd A. Müller, combining a ballpoint pen, 0.5 mm mechanical pencil, and built-in eraser in a sleek, brushed steel body. Featuring a unique rotary selector ring for seamless switching between writing modes, it offers professional-grade precision and durability. Lightweight and refillable, this pen is perfect for dynamic professionals who demand versatility and style on the go.

## Description

Product Description LAMY twin pen – Brilliantly versatile. As beautiful as it is practical: the LAMY tri pen. You have a ballpoint pen, mechanical pencil and a marker all in one writing instrument – and your work under control in no time at all. Flexibility and mobility have become key terms in our modern working world. And the number of people who no longer work at one fixed place, but who move from project to project is growing. In changing teams and often in different towns and cities. And their writing instruments? Ideally, they come from Lamy, are called the LAMY twin pen, LAMY tri pen or LAMY4pen and with these illustrative names signal that behind their slim shapes there is more concealed than just a ballpoint pen or a propelling pencil. They are particularly high-quality multi-system writing instruments, a speciality of Lamy, so that, wherever you are, at whatever time, you will always have the right writing system to hand. Designer: Gerd A. Müller Set Contains: LAMY twin pen st steel multisystem pen

Review: ラミーのツイスト式も良いです - ラミーの多機能ペンは他に 2000 4色ペン と ロゴ トライペン （いずれもシャーペン無し）を保有していて今回ｓｔのステンレスツインペンを妻の為に購入しました。 妻は ｓｔ単色ペン も保有していてデザインを気に入っているので同シリーズにしました。 初のシャーペン付き多機能ペンで、ドイツメーカーで良く見られる使う色の表示を上に向けて ノックするタイプでは無くこちらは本体を回してペン先を選択するタイプです。 回す際、僅かにザラッとして滑らかではありませんが、大して気になるレベルではありません。 ノックはシャーペン使用時のみ使います。 本体の作りは良く、口金、クリップとノックはポリッシュ仕上げでボディーは横向きのブラシ加工になっています。 一般的な単色ペンと変わらない細さですので多機能ペンで有る事を忘れてしまいます。 摘まむ箇所は細かい切り出し加工のリブになっていますのでツルツルでは無いです。 こちらもラミー2000同様ステルス性が高く、 良い意味で目立たないので人目を気にせずどんなシーンでも使える良いペンです。
Review: OK - OK

## Features

- With system identification ring and built-in eraser (LAMY Z 15) underneath the removable button.
- Fitted with ballpoint pen refill LAMY M 21 black and propelling pencil lead 0.5 (LAMY M 41) HB.
- Designer: Gerd A. Müller

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000WL2ZDM |
| Additional Features | Refillable |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #9,051 in Office Products ( See Top 100 in Office Products ) #180 in Retractable Ballpoint Pens |
| Body Shape | cylindrical |
| Brand | Lamy |
| Brand Name | Lamy |
| Closure Type | Button |
| Color | Black |
| Colour | Black |
| Country of Publication | Germany |
| Customer Reviews | 4.4 out of 5 stars 296 Reviews |
| Drill Point | ball tip |
| Global Trade Identification Number | 04014519043409 |
| Grip Type | Smooth |
| Hand Orientation | Ambidextrous |
| Hardness | HB |
| Included Components | Ballpoint pen, 0.5 mm mechanical pencil lead, eraser |
| Ink Base | Oil |
| Ink Color | Black |
| Ink colour | Black |
| Item Diameter | 0.9 Centimeters |
| Item Dimensions | 14.4 x 1 x 1 centimeters |
| Item Weight | 28 Grams |
| Line Size | 0.5 Millimeters |
| Manufacturer | Lamy |
| Material | Metal |
| Material Type | Metal |
| Model Name | 645 |
| Model Number | Twin pen 645 |
| Pattern | Main unit |
| Recommended Uses For Product | Writing |
| Style | Twin pen - Line width M |
| Theme | designer stationery |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Multifunction Writing Instruments |
| Writing Technique | ballpoint |
| Writing instrument form | Multifunction Writing Instruments |

## Product Details

- **Age range (description):** Adult
- **Brand:** Lamy
- **Colour:** Black
- **Ink colour:** Black
- **Writing instrument form:** Multifunction Writing Instruments

## Images

![twin pen st Multisystem Pen - Steel - Image 1](https://m.media-amazon.com/images/I/61nbHmzkb-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ ラミーのツイスト式も良いです
*by S***I on 19 October 2017*

ラミーの多機能ペンは他に 2000 4色ペン と ロゴ トライペン （いずれもシャーペン無し）を保有していて今回ｓｔのステンレスツインペンを妻の為に購入しました。 妻は ｓｔ単色ペン も保有していてデザインを気に入っているので同シリーズにしました。 初のシャーペン付き多機能ペンで、ドイツメーカーで良く見られる使う色の表示を上に向けて ノックするタイプでは無くこちらは本体を回してペン先を選択するタイプです。 回す際、僅かにザラッとして滑らかではありませんが、大して気になるレベルではありません。 ノックはシャーペン使用時のみ使います。 本体の作りは良く、口金、クリップとノックはポリッシュ仕上げでボディーは横向きのブラシ加工になっています。 一般的な単色ペンと変わらない細さですので多機能ペンで有る事を忘れてしまいます。 摘まむ箇所は細かい切り出し加工のリブになっていますのでツルツルでは無いです。 こちらもラミー2000同様ステルス性が高く、 良い意味で目立たないので人目を気にせずどんなシーンでも使える良いペンです。

### ⭐⭐⭐⭐⭐ OK
*by J***Z on 14 March 2024*

OK

### ⭐⭐⭐⭐⭐ Qualité
*by S***E on 4 April 2024*

Très belle qualité, confort d'écriture, utilisation très simple. J'ai lu dans les commentaires des personnes qui n'osent pas "forcer" pour remplacer les mines ou l'encre. Il suffit de regarder le schéma fourni dans la boite : dévisser (tourner vers soi) pointe du stylo vers la droite, barrette en face de soi. Cran à peine plus dur la première fois.

## Frequently Bought Together

- LAMY Multi Function Pen st Twin Pen, Stainless Steel, L645
- Lamy Lead Refill - .05 mm HB (12 Pcs) M41
- LAMY Multi-functional Pen st Tri-Pen, Matte Black, L746

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---

*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-09-17*