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TEC Accessories Knowledgebase


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Looking for a functional and stylish pen that is actually small enough to fit on your keychain? With the PicoPen, you can have a fine writing instrument with you whenever you need one. At 3-1/4 inches long and weighing about 1/2 ounce, you'll never know it's there until you reach for it. Tough yet elegant, you'll get a lifetime of use from this unique personal accessory. It's the keychain pen you can attach anywhere!

  • New updated version of our original PicoPen!
  • Durable stainless steel construction
  • Unique magnetic cap closure for one-handed operation. Simply pull the pen from the cap to deploy
  • Includes accessories for attaching to any number of convenient places
    • Keychain
    • Travel bag
    • Purse
    • Golf bag
    • Belt loop
    • Backpack
  • Uses a common replaceable ink refill

Download an independent review of keychain pens (2.5 MB)

Designed by TEC Accessories and manufactured to our specific requirements, the PicoPen is the most unique product of its kind:

  • Size: 3-1/4" [82.5mm] long (including cap). Pen body is 0.23" [6.0mm] in diameter
  • Weight: 1/2 ounce [14.5 grams]
  • Cap and body are constructed of stainless steel for many years of use
  • Ink refill is a common D1 "multi-pen" size available at your local office supply store (also available on our web site)
  • The cap contains a rare earth magnet that holds the pen in place. To remove the pen, simply pull it from the cap
  • Ink refill replacement is simple, pull it out from the pen body and push in the new one. The integrated micro grip insert holds the refill in place.
  • What you get:
    • PicoPen with ink refill
    • Snap ring for quick attachment/removal
    • 12 mm split ring
    • Foam-lined case

The PicoPen uses a standard D1 "multi-pen" size refill. Review the following images to determine which model of PicoPen you own, and how to replace the ink refill. If you have any questions or problems, please email us at:

Customer Ratings
Customer Ratings:     (based on 16 customers)

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Customer Reviews:

Don't take our word for it...See what others say:
"I got the PicoPen to have as an easy-to-access and reliable keychain pen and I wasn't disappointed. I love the convenience of its small size and carry options and its simple design makes it the perfect "stealth" pen."

"This is an awesome little pen! I absolutely MUST have a pen on me at all times and I am always losing mine, but not anymore. This thing is really slick, barely noticeable on my keychain but so easy to grab whenever I need it. Excellent product."

"Your review here PicoPen, my solution! In the evolution of mens clothing, pockets have somewhat disappeared from mens shirts. As editor of the Bavarian Beamer for the Sacramento Valley Chapter BMW CCA Club it is important to have pen and paper available at all times. In absence of shirt pockets where one would usually carry their pen and pencil I needed to find a simple and easy solution. Not only is my PicoPen an excellent product being unique, sleek, and snaps on my BMW key ring, but most important it is always with me and always writes!! Woody"
- Woody Morris

"The PicoPen is a great tool. I carry a small memo book around for notes and I clip the PicoPen to the binding. It's durable, handy and a must have for those of us who take lots of notes."
-James Gillespie

"I received the PicoPen a couple of weeks ago and love it. It is so hard to find a pen that is small, elegant, usable, and well-constructed that can be carried in a pocket without fear of loss or breakage. This pen absolutely meets all the criteria. It is well worth the money and, after I replaced it with a Fisher pressurized refill, it also works in any weather condition. Thanks for creating such an outstanding product!"
-Bryan Hansen

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