It is 4 1/2 inches long and 3/8th inch in diameter. I also have Zebra Mini pen and pencil. For me these pens,(and the pencil too) work great with the Moleskine small notebooks. I just clip inside the back cover and it's not so thick that it won't fit in my pocket. I bought several of each as I tend to lose them.

Pilot Birdy Stainless Steel Body Mini Ballpoint Pen, 0.7 mm, Black Ink (BS-40S-S)

Q: What is a "set"? The pricing for 2 is more than double the price of one. Same for 3, 4 and 5 set. It is not clear what is meant by "set."

I'm not sure why they use the term "set". 1 is one pen, 2 is two pens, and so on. And, yeah, at those prices, if you want more than one, you'd just buy multiple singles and not the multi-packs.

Q: Are these push button click action?

yes. push button like a "regular" ball point pen

4.5/5

Product ID: 12105519

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Details

Brand
PILOT
Color
Black
Ink Color
Black
Age Range (Description)
Adult
Material
Stainless

🔩durable stainless steel body

🖤sleek black ink

✒️0.7mm precision tip

Frequently Bought Together

Pilot Birdy Stainless Steel Body Mini Ballpoint Pen, 0.7 mm, Black Ink (BS-40S-S)

Zebra Mini Ballpoint Pen 0.7 mm, Silver Body, Black Ink (T-3)

Pilot Mini Mechanical Pencil Birdy, 0.5mm, Silver (HS-40S)

Description

✒️ Write sharp, carry smart — the pen that means business.

ENDURING ELEGANCE - Stainless steel body combines durability with a modern, professional aesthetic.
SMOOTH SNAP CLOSURE - Secure snap mechanism ensures your pen is protected and instantly accessible.
EFFORTLESS GRIP COMFORT - Round grip design for comfortable, fatigue-free writing during long brainstorming sessions.
PRECISION IN EVERY STROKE - 0.7mm tip delivers crisp, clean lines perfect for detailed notes and memos.
CARRY ANYWHERE COMPACTNESS - Slim, mini design fits effortlessly in your pocket or planner—always ready when inspiration strikes.

The PILOTBirdy Stainless Steel Mini Ballpoint Pen features a precise 0.7mm black ink tip housed in a sleek, durable stainless steel body. Its compact size and snap closure make it the ideal everyday carry for professionals who value style and functionality in note-taking.

Specifications

Manufacturer	Pilot
Brand	PILOT
Item Weight	0.317 ounces
Product Dimensions	4.8 x 0.5 x 0.5 inches
Item model number	BS-40S-S
Is Discontinued By Manufacturer	No
Color	Black
Closure	Snap
Grip Type	Round
Material Type	Stainless Steel
Number of Items	1
Size	1 Count (Pack of 1)
Point Type	Mini
Line Size	0.7mm
Ink Color	Black
Manufacturer Part Number	BS-40S-S

Have a Question? See What Others Asked

How long is it?

What is a "set"? The pricing for 2 is more than double the price of one. Same for 3, 4 and 5 set. It is not clear what is meant by "set."

will this tiny pen work with Fischer Space pen refills?

Are these push button click action?

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Trustpilot

TrustScore 4.5 | 7,300+ reviews