Troika Germany's Original Construction Pen; The quality standard for multi-tool pens. This nicely weighted brass ballpoint pen has six sides to ensure a very comfortable grip when writing. The Troika construction Ballpoint features an architectural ruler in both centimetre and inches, a level, mini screwdriver with both flat-head and Phillips head, and a matching color stylus for touchscreens. Surgical grip for easy twist action. Spare parts and refills available. Special Color Spectrum finish PRODUCT FEATURES Ballpoint pen featuring 10 centimeter and 4 inch ruler Two additional cm rulers with scale 1/20 and 1/50 Twist-action ballpoint pen with surgical grip for easy twist Well balanced brass six-sided barrel Slotted and Phillips screwdriver Tool quality level Color matching stylus Lacquered finish Full metal construction Black Ink Dimensions 5.91 x 0.39 x 0.39 inch Weight 0.09 Lbs Takes D1 Refill