The Uni JETSTREAM 0.5mm 4-COLOUR Refill Set, featuring black, blue, red, and green ink colours, is a high-quality pen refill designed for students and professionals alike. Made by Uni Mitsubishi JAPAN, known for their superior writing instruments, this refill set offers eco-friendly paper packaging and is manufactured in Japan. With a lead size of 0.5mm, this refill set is perfect for those who prefer a smooth and precise writing experience. Whether for school, work, or everyday use, this multi-coloured pen refill set provides reliability and style. 1 x black is opened but unused
eBay