Fisher X-Mark Space Pen w/Clip - Black Matte G10 The pens are made of

The pens are made of 6061 aluminum

This makes it great for harsh use in the field

Balancing ultralight weight with absorbency

Light plastic housing in a selection of colors

Appalachian Trail

Fisher X-Mark Space Pen w/Clip - Black Matte G10 The pens are made ofThe squared off top (cap) of the X Mark gives it a modern, tech look, while offering all the amenities of the classic Bullet pen design. The new Fisher X Mark is ultimate dependability in a compact size, making it the perfect take along pen for people who camp, climb, hike, ski, bike, fish, snowboard, hunt, kayak and scuba dive. Fisher writing instruments write in temperatures from 50 to 250F, underwater, in zero gravity, at any angleeven upside down!