This is a pen body only. Pen refill is available here

The Style Fit writing system gives you the freedom of choice to create a writing instrument as unique as you are. Choose your favorite pen body and combination of ballpoint, gel pen, and mechanical pencil components.

Style Fit writing components consist of the best that Uni-ball has to offer: super-smooth Jetstream ballpoint ink, vibrant and archival Signo gel ink, and diamond-infused Smudge-Proof pencil leads. With these great components, you can combine the best Uni-ball qualities into a single writing instrument. In addition, the system is eco-friendly since you can refill it again and again.

The lightweight pen body is made of plastic and features a clear bottom portion that allows you to see the ink color.