Currently there are 2 types of pen
This is a single piece of wood with a Parker Type Rollerball refill and a twist top. It can be made in a chrome or gun metal finish
A two piece pen with a screw on top that can be made as either a rollerball or a fountain pen. It is finished in chrome, gun metal or gold plate.
It is also possible to have two or three rings added to a pen and/or a logo such as regiment, company etc.