A refill for Troika Construction Ballpoint Pens.

Toika Square ballpoint pen for special tasks!

Troika Contruction ballpoint pen also includes scale rulers, level, two screwdrivers and a stylus for a touch screen.

Troika Contruction ballpoint pen also includes scale rulers, level, two screwdrivers and a stylus for a touch screen.

Troika Contruction ballpoint pen also includes scale rulers, level, two screwdrivers and a stylus for a touch screen.

Troika Contruction ballpoint pen also includes scale rulers, level, two screwdrivers and a stylus for a touch screen.