uni-ball SN-220 Power Tank Retractable Ballpoint Pen - 1.0mm - White Barrel - Black Ink - Pack of 6

Outdoor retractable ballpoint pen designed to work in temperatures down to -20 degrees and even in zero-gravity. With its very own pressurised refill the Power Tank pen ensures consistent ink delivery in various conditions. Each pen features a 1.0mm nib that writes a bold 0.4mm line. Rubberised grip and chunky barrel make this pen perfect for professional and outdoor use . This set contains six pens with a white barrel and black ink.