Fisher Space PEN Backpacker Pen, Black (BP/B)

Writes Underwater, Upside Down & At Any Angle, Over Grease, 3X Longer Than an average Pen. Also writes in Extreme Temperatures (-30 Degree to 205 Degree). Each Fisher Space Pen is precision assembled, hand tested, and carries a lifetime guarantee against all manufacturing defects Writes in extreme temperatures from -30F to 250F