Leuchtturm1917 Pen Loop: Loop Sizes, XL & Which Pens Fit

Leuchtturm1917 Pen Loop drawn to scale: a navy 40 × 40 mm patch with a 15 mm elastic loop holding a pen, next to a black Pen Loop XL with a 20 mm loop — A 40 mm patch with a 15 mm loop; the XL's loop is 20 mm (drawn at 1 mm = 3 px).

Product facts

Product: Leuchtturm1917 Pen Loop (standard, 15 mm loop)
Brand: Leuchtturm1917
Brand origin: Germany
Made in: Not stated^*
Material: Elastic loop on a self-adhesive backing
Price range: $$$5–20 per item

Notes on these facts

Made by Leuchtturm Gruppe (Geesthacht, Germany). Country of manufacture not stated: Leuchtturm1917's German product page names only the maker, LEUCHTTURM1917 GmbH in Geesthacht. Retailer listings have conflicted by color: Digitec (Switzerland) gave Taiwan for Charcoal, Galaxus gave the USA for Pumpkin and Indigo and "Germany, Taiwan, USA" for Black (both now block automated reading), and Paperole says Germany. Price: example listing.
Price bands are typical US retail, checked October 2026. Conversions to US dollars are approximate, at October 2026 rates (US$1 = ¥158 = ₩1,330 = NT$32.5 = CN¥6.7 = SEK 9.9 = DKK 6.7 = ₺49.6 = C$1.41 = A$1.43; €1 = US$1.12; £1 = US$1.32; CHF 1 = US$1.21).

Key takeaways

Leuchtturm1917's German site lists a 40 × 40 mm patch with a 15 mm elastic loop; the XL keeps the 40 mm patch and widens the loop to 20 mm.
Leuchtturm1917's German shop lists both the Pen Loop (item 800103) and the XL (801452) at €3.95 (about US$4.40) including VAT.
The brand sells the XL for fountain pens, large-calibre ballpoints and XL markers, in 5 colors.
Leuchtturm1917 publishes no maximum pen diameter; a Goulet Pens reviewer found the standard loop too small for a LAMY.
Country of origin varies by listing (Germany, Taiwan or the USA), and Leuchtturm1917 doesn't state it.

What is the Leuchtturm1917 Pen Loop?

It’s a small self-adhesive patch with an elastic loop that turns a notebook into a notebook-plus-pen. You peel off the backing and stick it inside the back cover, and the loop then holds a pen or pencil along the notebook’s edge.

Leuchtturm1917 is a German brand from the Leuchtturm Gruppe in Geesthacht, near Hamburg. It’s best known for notebooks such as the Leuchtturm1917 Medium A5, and it sells the loop in colors that match them.

Leuchtturm1917 Pen Loop specs

Spec	Pen Loop	Pen Loop XL
Patch size	40 × 40 mm (1.6 × 1.6 in)	40 × 40 mm (1.6 × 1.6 in)
Elastic loop width	15 mm	20 mm
Made for	Slim and standard pens and pencils	Fountain pens, large-calibre ballpoints, XL markers
Fixing	Self-adhesive backing	Self-adhesive backing
Colors	Many, matched to notebook colors	5
Item number (Germany)	800103	801452
Maker list price	€3.95 (about US$4.40) incl. VAT	€3.95 (about US$4.40) incl. VAT
Made in	Not stated	Not stated

Patch size, loop widths, the XL’s intended pens, item numbers and list prices come from Leuchtturm1917’s German shop.

To-scale drawing of the Leuchtturm1917 Pen Loop with a 15 mm loop and the Pen Loop XL with a 20 mm loop, both on 40 by 40 mm patches — The XL's loop is a third wider than the standard one: 20 mm vs 15 mm.

Which pens fit the Pen Loop?

Slim and standard pens and pencils fit the standard loop; thick pens need the XL. Leuchtturm1917’s shop pairs the standard loop with its own Drehgriffel Nr. 1 and Nr. 2 pens. Goulet describes the elastic as strong and suited to thin pencils and fountain pens.

Leuchtturm1917 doesn’t publish a maximum pen diameter. In Goulet Pens’ customer reviews, one buyer found it “too small for a Lamy”, so measure thick barrels first. The AL-star shares its body with the LAMY safari, so a safari owner may want the XL.

How do you attach it?

Leuchtturm1917 says to stick it on the inside of the back cover. A Goulet Pens reviewer notes the adhesive tab works only once, so choose the spot before you press it down.

Leuchtturm1917 doesn’t publish a holding-strength figure for the adhesive in the sources we found.

Does it work on other notebooks?

Yes, as a sticker it isn’t limited to Leuchtturm1917 notebooks. It suits other hardcovers with a flat inside cover, such as the Moleskine Classic, and small ones like the Leuchtturm1917 Pocket (A6).

Leuchtturm1917 doesn’t publish a list of compatible covers, so it’s your call on non-Leuchtturm notebooks.

How does the standard loop compare with the XL?

Pick the standard loop for pencils and slim pens, and the XL for fountain pens and chunky markers.

Pen Loop (15 mm): the widest color choice and a snug grip on slim pens.
Pen Loop XL (20 mm): for wide barrels; Leuchtturm1917 lists 5 colors and the same €3.95 (about US$4.40) price.

Both sit near the $5 line between our $ and $$ bands at US retailers, mostly just above it.

At a desk, a MUJI acrylic pen stand holds the pens that won’t fit either loop.

Who makes the Pen Loop?

Leuchtturm1917 is the stationery brand of the Leuchtturm Gruppe, a family company in Geesthacht, Germany. “Leuchtturm” is German for lighthouse. The group was known for stamp and coin collecting albums before it started making stationery in 2005.

The “1917” in the name comes from the year of its oldest predecessor business, KaBe; brand histories give 1948 for the Leuchtturm company itself. The Stürken family has run it since the end of the 1990s, its fourth generation.

Where is the Leuchtturm1917 Pen Loop made?

Leuchtturm1917 doesn’t say, and retailer listings conflict. Digitec has given Taiwan for the Charcoal loop and Galaxus the USA for Pumpkin and Indigo and “Germany, Taiwan, USA” for Black (both now block automated reading), and Paperole says Germany. Origin may vary by color and batch, so check the packet. The brand itself is German, based in Geesthacht near Hamburg.

Frequently asked questions

How big is the Leuchtturm1917 Pen Loop?

The adhesive patch is 40 × 40 mm and the elastic loop is 15 mm wide. The Pen Loop XL uses the same patch size with a 20 mm loop.

Will my pen fit in a Leuchtturm1917 Pen Loop?

Slim and standard pens and pencils fit. Leuchtturm1917 publishes no maximum diameter, and a Goulet Pens reviewer found the standard loop too small for a LAMY; for thick pens, Leuchtturm1917 sells the 20 mm XL.

What is the difference between the Pen Loop and the Pen Loop XL?

Only the loop. The XL widens the elastic from 15 mm to 20 mm, and Leuchtturm1917 sells it for fountain pens, large-calibre ballpoints and XL markers.

Where do you stick the Leuchtturm1917 Pen Loop?

Leuchtturm1917 says to stick it on the inside of the notebook's back cover. A Goulet Pens reviewer notes the adhesive tab is single-use, so you can't move it to another notebook.

Does the Leuchtturm1917 Pen Loop work on other notebooks?

It's a self-adhesive patch, so it can go inside other hardcover notebooks, such as a Moleskine Classic. Leuchtturm1917 doesn't publish a list of compatible covers.

What colors does the Leuchtturm1917 Pen Loop come in?

Many: Leuchtturm1917 and retailers sell it in colors that match its notebooks, plus editions such as Bullet Journal and Bauhaus. Leuchtturm1917 says the XL comes in 5 colors.

Where is the Leuchtturm1917 Pen Loop made?

The brand doesn't say, and retailer listings have given Germany, Taiwan or the USA depending on the color. Leuchtturm1917 itself is a German brand based in Geesthacht, near Hamburg.

Sources (16)

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