BIC 4 Colours® Fluo is a multicolored ballpoint pen with an original design. In addition to document-safe ink, it includes neon yellow for highlighting text passages. Four colors in one pen: blue, black, red, and neon yellow. Blue and black (line width 0.4 mm) are document-safe according to ISO 12757-2 standards. This means the ink is smudge-resistant, non-erasable, lightfast, water-resistant, and resistant to solvents and chemicals. Ideal for creating and signing important documents whose content should not be altered in any way. The intense neon yellow with a line width of 0.6 mm allows for strikingly marking information in the text. The red color is perfect for corrections or notes, rounding out the versatile use of the four-color ballpoint pen. All refills are housed in a round, transparent plastic barrel for practical monitoring of the ink level. Colored push buttons simplify color selection. Additional details: • Universally usable ballpoint pen • With 4 colors in one pen • Blue and black in document-safe ink (ISO 12757-2) • Red for corrections • Includes neon yellow for highlighting text passages • Colored push buttons facilitate quick color selection • Round barrel in transparent neon yellow for monitoring ink levels • Line width: 0.4 mm, line width neon yellow: 0.6 mm.