Experience the smooth writing precision of the UMR-85N Gel Ink Ballpoint Pen Refills. Crafted by Uni, these refills boast a 0.5mm point for fine lines and a sturdy PP/Resin construction for durability. The black ink delivers a sharp, crisp stroke ideal for office documents and everyday writing tasks. This pack includes 10 pieces, ensuring you have a supply on hand for when it's time to refill your favorite gel pens. Designed with a matte finish and made in Japan, these refills embody the quality and attention to detail expected from Japanese stationery. Keep your writing effortless and your pages impeccable with these reliable pen refills.