The Friction Ball Knock Zone is an erasable ballpoint pen designed for darker, longer-lasting writing. It uses a newly developed metal refill with Premium Friction Ink.
Features
The Premium Friction Ink has a higher ink concentration than conventional Friction Ink, for darker, more visible writing.
A tip holder grips the pen tip to reduce wobble and support stable writing.
A spring inside the pen reduces impact when clicking, creating a quieter knock. The knock sound is reduced by 78% compared with the Friction Ball Knock.
Gel ink ballpoint pen with a 0.5mm extra-fine ball.