Compiled from 3 sources; we haven't tested this product ourselves yet. How we research
Quick answer
The MUJI Aluminum Mechanical Pencil is a slim 0.5 mm pencil with a hexagonal aluminium body. MUJI USA lists it at 13.5 cm (5.3 in) with a brass tip and an iron clip, says lead refills are sold separately, and gives Japan as the origin.
Price bands are typical US retail, checked October 2026.
Key takeaways
MUJI USA lists the pencil at 5.3 in (13.5 cm) long with a 0.5 mm lead size.
The body is aluminium, with a brass head and metal part and an iron clip.
MUJI calls the hexagonal shape easy to hold; lead refills are sold separately.
MUJI USA gives Japan as the origin, and the pencil is in our $$ band ($5–20).
MUJI USA warns that the tip is sharp, so take care not to injure yourself or damage it by dropping.
What is the MUJI Aluminum Mechanical Pencil?
It’s a slim 0.5 mm mechanical pencil with a hexagonal aluminium body, sold by MUJI. MUJI USA describes an easy-to-hold hexagonal shape, made from durable aluminum, with lead refills sold separately. MUJI is the brand of Ryohin Keikaku, the Japanese retailer.
Its design matches MUJI’s aluminum hexagonal ballpoint pen.
MUJI aluminum mechanical pencil specs
Spec
Value
Maker
MUJI (Ryohin Keikaku Co., Ltd.), Japan
Type
Mechanical pencil with clip
Length
5.3 in (13.5 cm)
Lead size
0.5 mm (0.02 in)
Body
Aluminum
Metal part and head
Brass
Clip
Iron
Barcode
4548718616015
Made in
Japan (MUJI USA)
MUJI USA gives no weight, barrel width or lead grade for this pencil, so the diameter in our drawing is drawn by eye.
Who is the MUJI aluminum mechanical pencil for?
It suits people who want a slim metal pencil that doesn’t roll.
Everyday carry: it is 135 mm (5.3 in) long and MUJI USA lists an iron clip among its parts.
MUJI USA says only that the hexagonal shape is easier to hold; it doesn’t claim the pencil won’t roll. MUJI’s wooden hex pencil listing does say the shape prevents rolling. A six-sided barrel generally rolls less than a round one, but we haven’t tested this pencil.
How does it compare with MUJI’s other mechanical pencils?
It’s the lightest-looking of the three; the Low Center Gravity is longer and weighted, and the wooden hex is the shortest.
Lead: MUJI USA says refills are sold separately, and sells 0.5 mm lead in its own listing. The pencil’s listing doesn’t say a lead is included, unlike the wooden hex pencil, which comes with 0.5 HB. Our best mechanical pencil lead guide explains grades.
MUJI USA also sells an aluminum hexagonal ballpoint pen, 0.7 mm, in the same shape. Both are metal, and MUJI USA’s care note for the pencil warns that the tip is sharp: take care not to injure yourself or damage it by dropping it.
Where is it made, and what does it cost?
In Japan: MUJI USA gives Japan as the country or region of origin. The pencil is in our $$ band ($5–20). MUJI USA sells it as Final Sale, with no refunds or exchanges; we read the page on November 1, 2026, and prices change.
Frequently asked questions
How long is the MUJI aluminum mechanical pencil?
MUJI USA lists 5.3 in (13.5 cm).
Does the MUJI aluminum pencil come with lead?
MUJI USA says lead refills are sold separately, and its listing doesn't mention lead in the pencil. MUJI sells 0.5 mm leads in a separate listing.
Is the MUJI aluminum pencil hexagonal?
Yes. MUJI USA calls it a slim pencil with an easy-to-hold hexagonal shape, made from durable aluminum.
What lead size does the MUJI aluminum pencil take?
0.5 mm, per MUJI USA.
Is the MUJI aluminum pencil made in Japan?
Yes. MUJI USA lists Japan as the country or region of origin.
Is the MUJI aluminum pencil the same as the MUJI aluminum hex ballpoint?
No, but they share the same hexagonal aluminium design: MUJI USA also sells an Aluminum Hexagonal Ballpoint Pen 0.7 mm.
Can I return a MUJI pencil bought online?
MUJI USA marks it Final Sale, with no refunds or exchanges, on its product page as we read it.
