Smooth and precise writing performance that won’t run out on you. The V5 CARTRIDGE SYSTEM is the world’s first refillable liquid ink needle tip rollerball. Features include a Hi-Tecpoint tip for precise, clear writing and a visible ink level to ensure that you can clearly see when to refill it. The V5 CARTRIDGE SYSTEM is also made from 71% recycled plastic. Great for those who like to save money and reduce single-use plastic waste! Available in four different colours of pure liquid ink, the V5 CARTRIDGE SYSTEM is an environmentally sustainable, pleasurable writing experience that you can keep using over and over again.0.5mm tip gives a 0.3mm fine line.