Archival Safe. Non-Toxic. Acid free ink. Permanent Ink. Ball Pen. Writes on everything! Rubber grip. World's first permanent ball pen! Pilot Permaball Permanent Ink Ball Pen: Our convenient pen for all your writing and marking needs; Ever-Mark ink formula writes permanently on all surfaces and is water-proof, fade-proof and smear-proof; Durable tungsten-carbide ball maintains its shape and won't dry out; Acid Free/Archival Safe permanent ink is safe and non-toxic for all photo-memory and craft uses; No unpleasant odor and won't bleed through paper; Permanent, fine line writing for the office, home and industrial strength applications; Features a comfortable rubber grip. Available in Black or Blur ink with Medium point; Pilot Performance Guarantee insures your complete satisfaction or we'll replace it. Made in Japan.