Zebra F701
Likely the best pen that I hate. It’s a sturdy metal pen for less than $10. It would be an amazing first EDC pen but the refill compatibility is very limited. It feels rough and cheap.
Variants: Just various iterations over the years.
Refill: Proprietary stick type refill that feels like a placeholder. Most everyone swaps in a short pressurized refill from Fisher Space Pen PR or the Uni Power Tank Smart Series. Likely also fits the Schmidt Megaline 4889.