Accusharp Diamond Rod Sharpener features a retractable design with a dual-sided rod. One side is tapered for serrated blades and gut hooks, while the flat side is ideal for standard straight edges. The compact, pen-style body includes a pocket clip for easy EDC transport and a knurled locking nut to secure the rod at your desired length. Constructed with a durable metal housing, this versatile tool is perfect for maintaining knives, fish hooks, and tools in the field.