NEVER RUN OUT OF INK AGAIN! Keep using your favorite pen for years to come by refuelling it with the Mesmos 6 pack ballpoint pen refills, featuring high-quality ink made in Germany and precision tips manufactured in Switzerland. MEASURE TWICE AND REFILL ONCE! Double check that your existing pen cartridge is 2.75 inches long (70mm) with a diameter of 0.09 inches (2.3mm) to avoid any disappointment. COMPATIBLE WITH MOST CRYSTAL BALLPOINT PENS in the market including the infamous Swarovski Crystalline ballpoint pens and our very own Mesmos Glorious Pen Set. ENJOY SUPER SMOOTH WRITING with these 1.0mm medium tip oil-based ink refills that makes writing a breeze - perfect for taking notes and journalling. SAVE MONEY AND SAVE THE PLANET - Make a difference for the planet and your wallet by switching to Mesmos refills instead of buying new pens every time. MAKE A DIFFERENCE WITH YOUR PURCHASE as proceeds are contributed towards Global Fund for Women , a non-profit foundation supporting women’s human initiatives. Never run out of ink again with Mesmos ballpoint pen refills! This 6 pack of refills will keep your favorite pen writing for years to come. Say goodbye to the frustration of constantly buying new pens and hello to a more sustainable and cost-effective solution. And enjoy super smooth writing with the 1.0mm medium tip oil-based ink refills that make writing a breeze. These refills are also compatible with most crystal ballpoint pens in the market, including popular brands like Swarovski’s Crystalline Ballpoint Pens, as well as the very own Mesmos Glorious Pen Set. Before purchasing these refills, make sure your existing cartridge is 2.75 inches long (70mm) with a diameter of 0.09 inches (2.3mm). Double-checking these measurements will ensure a perfect fit and prevent any disappointment. With proceeds from your purchase going towards the Global Fund for Women, you get to make a difference for both the planet and women's human initiatives!