Brass EDC pen with or without patina

Solid brass metal pen, perfectly machined. Three different designs/sizes. A must in anyones EDC setup. Standard refills.

Now also available with forced patina. The green/bluish patterns formed in the process transforms each pen info unique pieces of art. Patina not available on the bamboo version since the process weakens the joints in that brass design  

Comes with one extra cartridge.