The 600 series pens have multifaceted barrels. These pens
are constructed out of solid brass, which accounts for their
heavy feel. The hexagonal, solid brass barrel has a black matte or silver
finish that resists finger marks and scratches. The well-balanced instruments are comfortable to hold. The ballpoint pen
has unyielding push button mechanism that allows easy one handed operation. The rollerball pen
features snap cap mechanism.