(Sarah Read is an author, editor, yarn artist, and pen/paper/ink addict. You can find more about her at her website and on Twitter. And check out her latest book, Out of Water, now available where books are sold! Links in the below post are Amazon Affiliate links.)
Faber Castell has a real winner with these RX Gel pens in their lineup. While the pen body isn't the greatest, the refill more than makes up for it.
This 5-pack comes with gold, pink, purple, blue, and green. The pen bodies are plastic in a color that matches the ink. The clips, which are part of the click mechanism, are white plastic. The click is extremely satisfying, but it's loud. It's a fidget dream, but it will irritate everyone nearby. The plastic body has a very slight triangular shape with a gently ridged grip section. It's very light and not very well finished. There are rough edges and plastic spurs at the nosecone and a number of flaws in the plastic itself. There's also an overall flimsy feel to the pen. That all sounds kind of awful, but the lifespan of gel pens is short enough that I don't need them to be too nice. I'm also not likely using them for a long writing session--just for quick planner notes or lists.