Return Policy Fast Delivery Trusted seller 50 Pieces Fountain Pen Balck Ink Cartridge, Fountain Pen Ink Refills for Calligraphy Pen 3.4 mm Bore Diameter(3.4mm) Product Description 【Convenient Than Ink Bottle】Skip the mess and save time with our replacement black ink cartridges. Refilling from an ink bottle can be messy, but with these cartridges, you can easily insert them into your fountain pen without any hassle or cleanup. Compatible with fountain pens that take 3.4mm cartridges, they provide a convenient solution for your writing needs. 【Abundant Quantity】Our package includes 50 pieces of 3.4mm fountain pen black ink cartridges. With this abundance, you'll have more than enough for your daily writing or as backups. Plus, they are versatile and meet various needs, ensuring you never run out of ink when you need it the most. Please make sure to check the size compatibility before making a purchase. 【Quick Dry Ink】Our fountain pen ink cartridges feature a fast-drying formula that ensures your important writing moments remain neat and smudge-free. Within seconds, the ink dries, preventing any unwanted smudges or smears. Each refill cartridge provides a dark, no-bleed color, whether you're writing fine small letters or creating bold calligraphy strokes. 【Smooth Ink Flow】The fountain pen refills offer a consistent flow of ink with no breaks or interruptions, allowing your fountain pen to glide effortlessly across the paper. The result is smooth and precise lines that enhance your writing, making it both comfortable and enjoyable. 【Easy to Install】We've designed these pen ink cartridges to be user-friendly and hassle-free. Simply press the ink sac into the refillable fountain pen, and an audible will confirm the successful installation. It's that simple! No complicated steps or frustrations, just easy and convenient refills that keep you focused on your writing. Shipping Returns Payment Shipping Shipping is FREE to all addresses other than APO/PO boxes in the lower 48 states. All our stock ships from US-based warehouses. Shipped via USPS or UPS (depending on location and package weight) Unless stated otherwise, all orders will ship within 24-72 hours of your payment being processed. Check our feedback to see the great reviews of FAST shipping we offer. Returns Seller does not accept returns Payment We currently accept payment via eBay managed payments only. Once payment is cleared, we will dispatch your shipment within 1-3 business days. Please refer to the "Shipping" tab for more information regarding shipping speed to your destination.