Utilizing sealed and pressurized ink, this Fisher Space Pen refill makes it easy to keep your favorite pen going strong. Use it to write in just about any location or position, even upside down or underwater. Thixotropic ink writes in unique conditions. In the freezing cold, boiling heat, underwater and at any angle - even upside down! Famously writes for a long time. Will write for a distance of 2 to 3 miles, or approximately 15,000 feet. Precision machined ball and socket to prevent leaks. Also delivers instant uniform ink flow. Eco-conscious choice - has one or more meaningful eco-attributes or eco-labels. Refill - designed for use with a specific refillable, helping you save resources and money by extending the life of your product.

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Fisher Space Pen Refill, Medium Point, 1.1 Mm, Blue Ink

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