Ohto C304 0.4mm water-resistant black ballpoint pen refill

• Refill for the Ohto CR ballpoint pen.
• OHTO has developed and patented a mechanism that prevents direct contact between the air and the ink reservoir, solving the problem of the ink drying out.
• The ball has an infinite number of craters on its surface. The natural retention of ink in these craters helps to provide an ultra-smooth and continuous writing experience.
• The SiC ceramic ball offers excellent storage stability as it does not oxidise.
• Ink colour: black.
• Line width: 0.4 mm

Brand: Ohto.