Compatibility: 0.7 mm refills specifically designed for Pilot FiXion Ball and Clicker rollerball pens. Drop them in and get consistent, reliable performance without fit issues. Longlasting performance: Each refill delivers approximately 400 metres of writing — made possible by a formulation with about 80% more ink than standard refills. Fewer refill changes for heavy notetakers and professionals. Precise Japanese 0.7 mm tip: A quality Japanese ball tip ensures smooth, controlled lines and consistent ink flow for writing, signing, or sketching. Fastdrying, heatsensitive ink: The ink dries quickly to reduce smudging and unwanted stains, making writing cleaner and more readable. The heatsensitive formula maintains the Pen's intended performance without sacrificing clarity. Better for lefthanders and quick notes: Rapid drying minimizes smear from dragging a hand across the page, so lefthanded users and anyone taking fast notes see fewer smears and clearer results. Key attributes at a glance: Tip size: 0.7 mm (Japanese quality ball) Compatibility: Pilot FiXion Ball & Clicker rollerball pens Ink performance: 400 metres writing length; 80% more ink vs standard refills Ink type: Heatsensitive, fastdrying, lowsmudge Practical uses: Study and notetaking: Longlasting ink and a fine 0.7 mm tip make these refills ideal for students who write large volumes of notes and need consistent lines without frequent refill swaps. Office and documentation: Reliable flow and quickdrying ink help produce neat meeting notes, forms, and signatures with reduced risk of smearing during handling or filing. Planning and journaling: Accurate, smooth lines and minimal smudge support daily planners, bullet journals, and detailed lists where readability matters. What you get: a capacity, compatible refill that preserves the smooth writing experience of your Pilot FiXion Ball and Clicker pens while extending run time and reducing smudges for everyday and intensive use.