Double-Sided Hook Sharpener with three grooves for fast, precise touch-ups on the go - Key benefits: keeps hooks razor-sharp with minimal effort, improving hook penetration and overall fishing performance. The diamond material delivers lasting sharpening power without particles shedding, making it a reliable tool for all fishing needs. - Three- groove design: two coarse slots (400 grit) for quick sharpening and a fine slot (800 grit) for a smooth, polished edge. This setup lets you rework dull hooks and then finish to a clean point in seconds. - Portable and ready when you are: pocket-sized with a hole for a lanyard, so you can attach it to a key ring or gear bag and have it handy on every trip. - Easy to use: simply run the hook edge through the coarse grooves to restore a sharp point, then pass through the fine groove for a finished edge suitable for confident hooking. - Suitable for a range of hooks: designed to work with various hook sizes used in freshwater and saltwater fishing, providing consistent sharpening performance. - Practical use scenarios: on a boat between catches for rapid touch-ups, during hiking or camping trips to maintain hook sharpness, and inside a tackle box for routine maintenance of your gear.