Troika's Original Construction Pen sets the quality standard for multi-tool pens. Cardboard Counter display with 4 Pens each of the 5 classic colors for a total of 20 Assorted Pens This nicely weighted ballpoint pen has six sides, which ensures a very comfortable grip when writing. The Troika construction Ballpoint features an architectural ruler in both centimeter and inches, a level, mini screwdriver with both flat-head and Phillips head, and a matching color stylus. Surgical grip ensures easy twist action. Spare parts and refills available. Troika's Construction Pen has a brass barrel with a yellow lacquered finish Multi-tool Ballpoint pen featuring 10 centimeter & 4 inch ruler, level & mini screw driver