The Hugo Boss blue M ballpoint pen refill (2 units) provides smooth, even, and long-lasting writing for your medium-point pen. Sold in a convenient two-pack, it contains optimized viscosity blue ink that glides effortlessly and doesn't dry out prematurely at the tip. The medium-sized 1.0 mm ball ensures a legible and well-defined line. It's the essential replacement accessory for those who use their ballpoint pen daily and demand the quality of original Hugo Boss blue writing.