Staedtler Highlighter Textsurfer with large ink reservoir for extra-long highlighting performance. INKJET SAFE does not smudge inkjet printouts and handwritten texts. Copy Proof - violet and turquoise for documents which are to be copied. For paper, fax and carbon copies. Fast-drying. Twist cap for easy opening. PP barrel and cap guarantee long service life. Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft. Ultra-soft chisel tip approximately 1 - 5 mm. Refillable.