Our ink converter replacement is ideal for those who need a reliable and solution for their fountain pens. The refillable fountain pen converter allows you to use your favorite ink bottles without the need for disposable tube, making it an excellent choice. Simply attach the converter to your pen, dip the nib into the ink bottle, and twist to fill. This process ensures a clean and efficient ink transfer every time. Features -Color:Multi -Material:Stainless steel and plastic -Size:12.00X0.70X0.70cm/4.72X0.28X0.28in -Essential accessory: these converters are a musthave for calligraphy enthusiasts, providing a reliable and efficient solution for ink filling -Compact design: the different styles of pen spring fillers are designed to be compact and lightweight, making them easy to carry and use -Ease of maintenance: the vacuum spring design allows for easy disassembly, cleaning, and installation, ensuring convenient maintenance -Wide compatibility: these converters are suitable for most types of pens, meeting the needs of a wide range of writing instruments -Safety precautions: the product is and includes pointed items, so it is important to keep it away from children to ensure safety Package list: 18 x fountain pen converters