V-Cone Knock Retractable Water-Based Ballpoint Pen / Pilot

Regular price ¥500
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Tip Size
Ink Color

Details

  • Mechanism: Retractable (knock)
  • Ink Type: Water-based dye ink
  • Tip Sizes: 0.5mm (Extra Fine), 0.7mm (Fine)
  • Ink Colors: Black, Red, Blue
  • Total Length: 144.3mm
  • Maximum Diameter: φ11.1mm
  • Weight: 11.4g
  • Body Material: Resin, Rubber
  • Clip: Metal
  • Grip: Rubber

Behind the Design

Liquid water-based ink has long been prized for its bold, vivid lines and smooth flow, but it comes with a structural problem: expose it to air and it dries on the tip, making a retractable design almost impossible without risking clogging or leaking. The V-Cone Knock exists because Pilot solved that problem with a low-viscosity ink formulated specifically for the retractable format, resisting evaporation at the tip while still flowing freely onto paper.

The pen also addresses one of the common complaints about water-based ink: slow drying and smearing. The dedicated formula dries faster than conventional liquid water-based ink and holds up when the page is rubbed. A metal clip adds rigidity and a quality feel without adding bulk, and the rubber grip keeps the pen steady during extended writing sessions. The V-Cone Knock is essentially the answer to the question: what would a liquid water-based pen look like if you removed the cap entirely?

Most water-based pens can't use a retractable mechanism because the ink would dry out or leak, but Pilot engineered a low-viscosity dedicated ink that makes it work. The result is the smooth, skip-free flow of a liquid water-based pen with the click-to-open convenience of a ballpoint, plus faster drying and smear resistance.

Packaging That Reflects Our Values

Every order is carefully packaged to reflect our commitment to quality, presentation, and sustainable choices. Complete with complimentary touches, orders also include custom-designed furoshiki and an original, seasonal postcard.

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