Available from Nordisco on Ebay. Zebra X701 0.7mm 29811 Extreme Ballpoint Pen, Black Ink With Bonus Refills. The “extreme” cousin of Zebra’s popular Steel line, the X-701 is as tough as they come. Pen has a pressurized barrel that allows you to write in extreme temperatures and at extreme angels. Non-reflective, weighted stainless steel barrel for enhanced writing comfort. The 0.7 mm fine point promotes precision writing. Lanyard loop near pocket clip offers another easy way to carry it. Tactical ballpoint pen is refillable and includes two refills.