Rite in the Rain All-Weather EDC Pen No. BK92 Black Pack of 2 Cases simply hang it on a

simply hang it on a hanger

Additional features include authentic Duraflex® hardware for reliable action and a water repellant coating to repel moisture and soil

Features of Leatherman MUT Multi Tool

More info from Wikipedia about the Pugil Stick

Rite in the Rain All-Weather EDC Pen No. BK92 Black Pack of 2 Cases simply hang it on aFEATURES CONVERTIBLE CAP Cap snaps securely onto end of pen creating a comfortable standard size barrel. INK WON'T SKIP Proprietary ink and delivery system used exclusively in Rite in the Rain Pens will write without skipping in extremely wet conditions. WRITES UPSIDE DOWN Pressurized ink cartridge performs in temperatures from 30F to 250F, under water (up to 35 ft), and at any angle. SPECIFICATIONS BARREL COLOR: Flat Black MATERIAL: Tough Plastic