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# Platinum gives PRO-USE 171 a pastel turn for October
- URL: https://news.knockology.com/platinum-pro-use-171-pastel/
- Published: 2026-09-28T12:55:09.000Z
- Updated: 2026-09-28T18:38:40.000Z
- Description: Silky White and Silky Pink pair matte barrels with pink-gold details; the adjustable drafting mechanism stays.
- Author: Thomas
- Tags: Products, Platinum, PRO-USE, Mechanical pencils, Release previews, Japan, #Import 2026-09-28 19:31

[Platinum](https://www.platinum-pen.co.jp/?ref=news.knockology.com) is giving its adjustable [PRO-USE 171](https://www.platinum-pen.co.jp/?ref=news.knockology.com) drafting pencil a softer finish. **Silky White and Silky Pink** limited editions arrive in Japan on **October 28, 2026**, priced at **¥4,180 including tax**.

The [September 28 announcement](https://www.platinum-pen.co.jp/news/13573/?ref=news.knockology.com) pairs pearl-resin barrels and a special matte coating with pink-gold details. Platinum pitches the colors for everyday writing and business settings as well as the pencil’s technical uses.

## The finish changes; the controls stay

The 171 retains two separate adjustments. Turning the nose changes the exposed guide-pipe length, accommodating different ruler thicknesses or distances between the grip and paper. Holding the grip and turning the body switches the cushioning mechanism on or off.

![Platinum’s diagram explains adjustable pipe length and switchable lead cushioning. Image: Platinum Pen.](https://news.knockology.com/content/images/2026/09/industry-platinum-pastel-detail.jpg)

Platinum’s diagram explains adjustable pipe length and switchable lead cushioning. Image: Platinum Pen. [Original source](https://www.platinum-pen.co.jp/news/13573/?ref=news.knockology.com)

The distinction matters when comparing it with a simpler drafting pencil: pipe adjustment changes the front-end geometry, while the cushioning setting changes whether the mechanism yields under writing pressure. The limited colors bring those existing controls to a different-looking barrel.

Both versions use **0.5 mm lead**. Under model **MSDA-3800B**, Platinum lists a length of **144.5 mm**, maximum diameter of **10 mm** and standard weight of **24.5 g**.

Platinum calls the edition limited but gives no production quantity in the announcement. October 28 is the Japanese release date; the notice does not specify overseas timing.