Est. 2026 · Price: FreeEditor-at-large: The Hedgehog

Stationery Times

Brand: HMM

HMM Pocket Ruler: Six Measuring Cards in a Leather Case

Compiled from 2 sources; we haven't tested this product ourselves yet. How we research

Quick answer

The HMM Pocket Ruler is a set of six acrylic measuring cards in a vegetable-tanned leather case, with a seventh free magnifier card. The cards measure font size, line height, line width, angle, corner radius and centimeters. Each is 90 × 53 × 1 mm and 6.5 g, made in Taiwan, at US$45 on November 5, 2026.

On this page10 sections
Six HMM Pocket Ruler cards, each 90 by 53 mm with different markings, beside the green, black and brown leather cases
The six cards at 90 × 53 mm (1 mm = 2.6 px) beside the three case colors; markings and case size by eye, colors sampled from HMM's photos. Original illustration made for this guide. © Stationery Times.

Product facts

Product
HMM Pocket Ruler
Brand
HMM
Brand origin
Taiwan
Made in
Taiwan*
Material
Acrylic cards, vegetable-tanned leather case
Good for
Released
August 2026*
Price range
$$$$20–75 per item
Colors

Green

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Notes on these facts
  • Made by HMM (Taipei). Made in Taiwan: The product page lists Made in Taiwan. It does not name the factory. Source. Price: example listing. Released: The store lists the product as published on August 31, 2026; HMM states no release date on the page.
  • Colors: names per HMM (maker's store): Pocket Ruler case colors and photos, checked November 5, 2026. The maker names three case colors. The tints are sampled from its photos of each case and are representative; the Brown case photographs as a bright tan-orange. Tints are representative, not measured. Shops stock different colors.
  • How we test and disclose samples: How we test stationery.
  • Price bands are typical US retail, checked October 2026.

Key takeaways

  • HMM says the set puts six measuring tools into pocket-sized transparent cards: font size, line height, line width, angle, corner radius and a cm ruler.
  • Each card is listed at 90 × 53 × 1 mm and 6.5 g; a free magnifier card is included for reading small numbers, and the cards sit in a vegetable-tanned leather case.
  • The markings are embossed, which HMM says makes each measurement more intuitive; the English page gives no accuracy or tolerance figure.
  • The case comes in Green, Black and Brown, and the page lists Made in Taiwan; the case size is not stated.
  • The maker's store listed it at US$45 on November 5, 2026, in our $$$ band ($20 to $75), and all three colors were available.

What is the HMM Pocket Ruler?

It is a set of six clear measuring cards, each about the size of a business card, that carries a designer’s gauges in a pocket. HMM is a Taipei design brand whose name stands for Human, Made, Method. Its English page says the set brings six measuring tools “into a set of pocket-sized transparent cards”, stored in a leather case.

We read the product page on November 5, 2026. The store lists it as published on August 31, 2026, so it is a recent product, and we found no reviews to cite.

What are the six measuring tools?

Font size, line height, line width, angle, corner radius and a centimeter ruler. HMM numbers them 01 to 06 on its page, and names the underlying tools as a grid ruler, protractor, radius gauge, type gauge, line width gauge and leading gauge. The markings are embossed, which HMM says makes each measurement “more intuitive and objective”.

Six cards labelled font size, line height, line width, angle, corner radius and CM ruler, each 90 by 53 mm
The six cards at 90 × 53 mm each; the tool names and size are HMM's, the markings on each card are our drawing. Original illustration made for this guide. © Stationery Times.

HMM does not publish the scales on each card, such as which point sizes or radii are marked, so the drawing does not show them.

HMM Pocket Ruler specs

Spec Value
Maker HMM (Taipei)
Cards 6 measuring cards plus 1 free magnifier card
Card size 90 × 53 × 1 mm
Card weight 6.5 g each
Material Acrylic cards, vegetable-tanned leather case
Case colors Green, Black, Brown
Case size, total weight Not stated
Origin Taiwan
Price band ($$$ = $20 to $75) $$$ (US$45, on November 5, 2026)

What colors does it come in?

The case comes in Green, Black and Brown. We sampled each tint from HMM’s photo of that case. The Brown case photographs as a bright tan-orange, and the Green is an olive, so treat the swatches as approximate. All three were available on November 5, 2026.

Who is the HMM Pocket Ruler for?

It suits people who lay out type and graphics by hand or on print proofs: designers, editors and students of layout, and anyone who wants an everyday carry measuring tool. Everyday carry is the point: checking a printed font size, a line height or a corner radius is the job the six cards are named for, and at 90 × 53 mm and 6.5 g a card fits a pocket.

It is not a general ruler. The longest scale HMM lists is the cm card on a 90 mm body, so for a ruler that measures a page see our Midori Aluminum Ruler 15 cm guide. For another pocket-sized measure, see the Makers Cabinet Stria folding brass ruler.

What does HMM not say about the Pocket Ruler?

It gives no accuracy, no scale list and no case size. The English page names six tools and says the markings are embossed, but it does not say which point sizes, line weights or radii the cards mark, what the angle card’s increments are, or how thick the leather case is. It also does not say whether the cards are individually labelled.

HMM sells the set as a design tool, and the store lists it as new on August 31, 2026. Until independent reviews appear, the specs above are the maker’s own.

What does it cost, and where is it made?

US$45 on HMM’s own store on November 5, 2026, in our $$$ band ($20 to $75). The page lists Taiwan as the place of manufacture and does not name a factory. HMM says it ships worldwide. Prices change, and we did not check other sellers.

For HMM’s other desk tools see the HMM Ballpoint and the HMM Eraser Ball.

Frequently asked questions

What does the HMM Pocket Ruler measure?

Six things, per the maker: font size, line height, line width, angle, corner radius and centimeters. A grid ruler, protractor, radius gauge, type gauge, line width gauge and leading gauge are how HMM names the six cards.

How big is each card?

90 × 53 × 1 mm and 6.5 g each, per HMM. The case size and total weight are not stated.

What is it made of?

Acrylic for the cards and vegetable-tanned leather for the case, per HMM.

Is a magnifier included?

Yes. HMM lists a free magnifier card for reading small numbers and fine markings, so the set holds seven cards.

How accurate is it?

The English page gives no accuracy or tolerance. It says the embossed markings reduce guesswork. We have not tested it.

What colors does the case come in?

Green, Black and Brown, per HMM's store.

How much does it cost?

US$45 for any case color on HMM's own store on November 5, 2026, in our $$$ band ($20 to $75). Prices change.

Where is it made?

The product page says Made in Taiwan. HMM is based in Taipei.

Sources (2)

  1. HMM (maker's store): Pocket Ruler, six tools, card size and weight, materials, colors, origin, price (read November 5, 2026)
  2. HMM (maker's store): About HMM, Human, Made, Method, Taipei studio (read November 5, 2026)

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