The Pilot Hi-Tecpoint V5 (or BX-V5) is a popular, best-selling liquid ink rollerball pen known for its 0.5mm stainless steel needle tip, smooth and consistent ink flow thanks to its ink controller, and a visible ink supply. This pen provides ultra-precise, fine lines (approximately 0.3mm), making it ideal for detailed writing and note-taking. 
 
Pure liquid ink, ensuring smooth, long-lasting, and vibrant writing.