Feature Highlights: 1. 5-Pack Value Set – Each converter measures 65mm × 4mm and weighs 1.4g, perfect for refilling fountain pens quickly and conveniently. 2. Easy to Use – Simply insert into your fountain pen for smooth, hassle-free ink refills—no mess, no fuss. 3. Durable Plastic Material – Made from sturdy black plastic, designed for reliable, long-lasting use. 4. Universal Compatibility – Works with most standard fountain pens, ideal for home, office, or school. 5. Neat & Practical Storage – Keep your writing tools organized; great for pen enthusiasts, students, and daily writers. Product Details: This 5-pack of black fountain pen ink converters offers a simple and efficient way to refill your pen. Made from durable plastic, each converter is lightweight yet sturdy, ensuring a secure fit and consistent ink flow. The set is designed for ease—just attach, fill, and write. Whether you're at work, in class, or journaling at home, these converters help you avoid disposable cartridges and make ink switching a breeze. Specifications: - Size: 65mm × 4mm - Weight: 1.4g per converter - Material: Plastic - Color: Black - Quantity: 5 pieces - Package Includes: 5 plastic ink converters Note: Slight color variations may occur due to lighting or screen differences. Product measurements may vary within +/- 1–3mm.