Here's a demonstration of the magnet cap for the pen auction pinned to my profile. I had some tear out on the wood for this so it became my desk pen, but same model as the auction pen. Maybe it's just the pen nerd in me, but when the magnet pulls shut it has a satisfying click. And it holds strong too, no worries on the cap falling off.
@stueytheround it's become a desk fidget toy for me.