Fisher Space Pen Cap-O-Matic Space Pen, Chrome Cap with Space Shuttle Imprint, Black Barrel (S294) Shuttle imprint on barrel Writes at any angle, even in Zero Gravity. Simply the most versatile pen ever made. Writes in extreme temperatures from -30F to 250F Each Fisher Space Pen is precision assembled, hand tested, and carries a lifetime guarantee against all manufacturing defects. Composition: plastic barrel/metal cap