







🖋️ Tiny pen, huge impact — carry confidence in your pocket!
The Auto NBP-505MN-BK is a Japanese-engineered, ultra-compact retractable ballpoint pen featuring a 0.5mm extra-fine tip and oil-based ink for smooth, precise writing. Crafted from aluminum and brass, it weighs just 0.1 oz and measures 3.6 inches, designed to fit seamlessly into business card holders or wallets. Perfect for professionals who demand portability without sacrificing quality, it comes with a custom holder and uses exclusive refills to maintain peak performance.
| ASIN | B00BS52V94 |
| Best Sellers Rank | #80,669 in Office Products ( See Top 100 in Office Products ) #2,313 in Ballpoint Pens |
| Brand | OHTO |
| Closure | Retractable |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (791) |
| Date First Available | July 2, 2013 |
| Grip Type | Smooth |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.141 ounces |
| Item model number | Minimo |
| Line Size | 0.25 |
| Manufacturer | オート |
| Manufacturer Part Number | NBP-505MN-BK |
| Material Type | Aluminum Brass Polypropylene |
| Number of Items | 1 |
| Pencil Lead Degree (Hardness) | 3 |
| Point Type | Extra Fine |
| Product Dimensions | 3.58 x 0.02 x 0.02 inches |
| Size | 1 Count (Pack of 1) |
N**K
It's a tiny pen!
I have used my pen for about a week when situations came up that I did not feel like looking for another pen, or did not have another one available. The pen is basically the width of a ball point insert, so no wasted space, and shorter than a normal pen. It came with a small plastic card with a loop at the top that could be put in your card like a credit card might, and hold the pen in your wallet, but I've been using mine in a small pouch of everyday useful things and it's convenient to have around. I felt the challenge that this pen would need to balance was accomplishing the 1 thing chose this pen for (being tiny!) without being TOO MUCH of the thing I chose it for (TOO tiny to really be usable, or very flimsy feeling). I feel it's just the right size, and the writing I do is a little worse but not by much compared to a full sized pen. the Pen writes smoothly, even on Rite in the Rain paper which can be a little harder to right on for some pens, even other ballpoints. I've only used it for a week, but so far so good. :)
R**.
High quality tiny pen.
High quality workmanship in tiny size. Fits perfectly in wallet with supplied plastic cardholder-with-slot. It fits in tight spaces other pens won't fit when you need to mark an outline of parts for precise work. Great EDC kit addition.
V**M
Excellent TINY pen!
Wow, I love this very tiny pen. I would say it's more MICRO and probably smaller than any writing utensils you've ever seen because it's also a very thin pen. It feels durable in the hand though and writes great! I have it stashed in my slimfold nano wallet, and it pairs so well with the minimalist theme I have going on in my pocket. I barely notice the difference in my wallet with it in there. This is such a practical and convenient little item to carry around, and I've already had to pull it out to use on the go. It's a great purchase that looks great, and writes great!
D**D
Small, Mighty, but a bit to fine on the ink.
The image attached is the pen on a 3x5 card as it naturally writes. Everybody should know that this is a very small pen, about 1.5 times the size of a large toothpick. It will fit inside a standard Altoids tin container. It is an incredibly well-engineered pen, featuring high-quality materials and a great feel. I put some stress on it, and it does not bend. And a very positive click. Some people might complain it is too small, and it is too small for everyday writing all day. But it works when you need it, which is mostly in an emergency situation. It's only a few dollars, and you'll always have it available. My biggest concern with this pen is not the size; it's that the ink is very fine on the paper. If it's not as bold as I would normally like.
O**T
PERFECT GIFT!
Got this pen for my grown son. He loved it. He's a collection and gadget guy. It's the neatest thing. I'm ordering refills for it. It's really not too hard to hold. It's for jotting and signing... not writing papers or manuscripts... be fair. It's a great conversation starter... say nothing... just use it... someone will start talking to you. I live on little means - di$ability - and I looked and looked for a nice gift that I could afford and saw this pen... it's so affordable that I got one for myself, too. It's durable for It's purpose but I can guarantee you'll be looking for excuses and ways to use it... I sure am!! It's so CUTE AND USEFUL! I keep mine on a necklace. Not heavy, not banging on things when I bend. It's fine but strong for its tiny mighty size (BARELY over 3 inches). Get yourself one... get one for someone else, too!
A**Y
Super Small
So I got this pen as a travel pen. The only issue I have with it is that it’s truly small lol. It’s hard to write with but not impossible. Definitely a backup pen. It comes in a plastic card so you can carry it around in that and not get it lost in a bag or worse, stepped on if it falls out since it’s so thin and barely there. If those are the qualities you’re looking for then you’re in luck! It writes decently, drags on rougher paper, and is a ballpoint and not a gel pen in case anyone was wondering. The travel pen I usually use is the Kikkerland retro mini but it’s since gone up in price so was looking for something in the old price range of under $10. Kikkerland has 5 in a pack for about $9 while this by itself is $7. Not a bad price, but not sure that I’d buy it again.
M**K
Not as advertised
I never received the credit card holder which is shown in the description. Because of that is is a little disappointing. The pen is so small it is easy to lose without it. The credit card holder fits into the wallet perfectly and barley weighs anything. I had brought one past and it came with the holder. The pen works fine, Use just in emergencies. Do not use for long term use. It would be uncomfortable. It also uses special refills. It is one of the smallest and thinnest pens I have ever seen though. I would rate the pen 4 stars for every day carry only. I gave it three because I never got the holder.
T**J
Quality product
The body is more sturdy than I expected, good quality. Writes well, the ink isn't anything extraordinary but it get the job done.
Trustpilot
1 month ago
5 days ago