- Premium Quality: This retractable knife sharpener is made from diamond-coated steel, ensuring durability and unbreakable performance. The fine grit surface makes sharpening effortless. The aluminum housing not only protects the sharpening rod but also safeguards your fingers during use. - Retractable & Detachable: This versatile 3-in-1 pen-shaped knife sharpener is designed for portability. It easily fits in your pocket, bag, or tackle box. The adjustable length ranges from 14cm to 23cm (5.5 to 9.1 inches), allowing you to customize it to your preferred size for convenience. - Creative Design: Featuring both half-round and flat surfaces, this sharpening steel is perfect for kitchen knives, mending blades, serrated edges, and scissors. The specialized groove on the fishhook sharpening rod is designed for fishing hooks, while the conical section is ideal for serrations and gut hooks. - Save Time: This detachable knife sharpener stick is an essential tool for maintaining sharp edges in your kitchen. Its efficient design allows for quick sharpening, helping you save time and energy. The half-round and flat surfaces cater to standard knife edges, ensuring optimal performance. Use Scenarios: 1. Quickly sharpen your kitchen knives before meal prep to ensure precise cutting. 2. Maintain your fishing gear by sharpening hooks on the go, ensuring you are always ready for your next catch. 3. Restore the edges of household scissors and tools, making them effective for everyday tasks.