Fisher Space Pen Refill Ballpoint Fine Nib Blue doodlebug SKU: DS02915

SKU: DS02915

OEM: 0352810

Battery type: 1 AA battery

versatility and compact footprint of an A4 device

Fisher Space Pen Refill Ballpoint Fine Nib Blue doodlebug SKU: DS02915DescriptionSpecificationsShipping Paul C. Fisher developed the pressurized refill for NASA in 1965. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ball point and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch allows it to write in freezing cold, boiling heat, under water and at any angle even upside down! Pressurized Space