[u407]’s 3D printed Signspinner was created as a clean/dirty indicator for a dishwasher, and at its heart is a mechanism that works a lot like that of a retractable ballpoint pen. Every click of ...

The Parker company, who first developed the retractable mechanism, were worried that this new design might flop. So they didn’t put the distinctive Parker arrow clip onto the pen until a few ...

This is a review of my current EDC pen: Zebra F-701 Stainless Steel Ballpoint Retractable Pen ... Quiet plunger mechanism silences any clicking when you retract. Refillable with Zebra F-Refill.

You've disassembled and reassembled retractable pens dozens of ... In his latest video, he walks through the mechanism of the very first mechanical pen in great detail, and you'll see how while ...

Of course a ‘clicky pen’ is actually called a ‘retractable pen’, and they have been around since the 1950s. But how do they work? There are many variations, but Youtuber EngineerGuy has ...

The same mechanism retracts it. The pen’s blade is 1.75 inches and is crafted from D2 steel. TL;DR: It’s legit. Cobratec While its retractable blade might be enough to attract some attention, it’s far ...

The refillable, retractable ballpoint pen is warrantied for 100 years and a million clicks. One of the Dragon Pearl's biggest claims to fame is the fact that virtually the whole thing – inside ...

Although the Pilot FriXion Clicker Erasable Retractable Gel Pen is not an official pick, it’s listed as the best option for anyone who’s too nervous to commit to writing in pen. I bought a ...

The same mechanism retracts it. While its retractable blade might be enough to attract some attention, it’s far from the only thing this pen has going for it. Even without the blade, this is a ...