The Sheaffer K ballpoint refill delivers premium writing performance for your everyday needs. Engineered with high-quality Sheaffer ink, this refill offers smooth flow and extended write-out, making it ideal for use across all paper types. Compatible with most Sheaffer ballpoint pens (excluding Sagaris and Taranis collections), it combines reliability with convenience. Available in Medium and Fine points, with your choice of classic black or blue ink. Built to last, this refill is trusted for dependable performance that professionals and everyday users alike can count on.