Fisher Space Pen® in a pocket-size style! The pressurized Space Pen by Fisher writes at any angle, over almost any surface, and at extreme temperatures giving you a reliable writing instrument wherever you go – on Earth or beyond! This one-of-a-kind writing instrument was used on all American and Russian manned space flights, so you know you could depend on them. Full-sized ballpoint when in use, compact size when closed. Choose from 4 styles.