Rite in the Rain weatherproof black mini bolt pen black ink. Rite in the Rain notebooks the most ideal pen for Rite in the Rain all weather notebooks.

Product Features:

• Writes through the permanent ink writes through water, grease, and mud without clumping or smearing
• The pressurized ink writes in temperatures from -30F to 250F, under water (up to 35 ft), and any angle
• Proprietary ink the ink and delivery system used exclusively in Rite in the Rain refills will write without skipping in extremely wet conditions far better than other comparable weatherproof pens
• Ink delivery tiny pockets in the pen's tip will deliver ink in the worst conditions without allowing water or air back into the cartridge