A pen + cap precision machined from a single bar of solid brass and available in natural or mirror polished finishes. The cap is a screw fit and can be taken off with a single half twist. The refill is replaced simply by removing the grub screw at the base of the pen with an allen (hex) key.
Machined (satin), Polished
Allen (Hex) key + Optional end extender for cap
Parker Quinkflow Ballpoint (black)