A Bic will smear, skip, and spill—this writes upside down.
Why Not Just Buy the Cheap One?
Cheap pens like Bic or Paper Mate use water-based ink that smears and refuses to write at odd angles. The Space Pen uses pressurized ink that writes on wet paper, upside down, under water—anywhere. Its brass body won't crack in your pocket.
The Buy-Once Math
A 10-pack of Bics costs $5 but each runs out fast and goes to landfill. One Space Pen with a single refill will outlast dozens of disposables. That's $28 instead of $30+ and zero frustration.