Nobody buys a pen expecting it’ll last long. And certainly, no one buys a Bic thinking it’ll be the Sting of ballpoints. But that oughta? change if this clever little design ever goes into production.

How do you fit double the ink into the refill of a ballpen? By twisting the tube into a spiral, that's how. Called the T&T Pen-Ink Chamber, the helical coil fits into any regular pen barrel and sits ...

When it comes to pens, they have largely remained unchanged since the disposable pen first appeared on the market. Typically, you get a roller ball tip attached to a tube filled with ink in various ...