Troika's Original Construction Pen sets the quality standard for multi-tool pens. This nicely weighted ballpoint pen has six sides, which ensures a very comfortable grip when writing. The Troika construction Ballpoint with a blue finish features an architectural ruler in both centimeter and inches printed on the barrel and a level inside the barrel. Underneath its matching color stylus you will find a mini screwdriver with both flat-head and Phillips head. Surgical grip ensures easy twist action and precision when writing. Spare parts and refills available. Troika's Construction Pen is available more than 17 different finishes. Takes D1 Refill Promote Your Business with a Troika Construction Pen Promote your business by adding a logo engraving to Troika Construction Multi-function Tool Pen with navy blue finish. Customization method: laser engraving Max engraving surface size: 1.77 x 0.16 inches ( 45 x 4 mm) Minimum order quantity for logo engraving 50 pieces