Be confident in your purchase, we are a certified MADI Dealer. How cool is that?? Features: Sharpens linemen, straight, serrated, and safety blades Preset sharpening angles provide guaranteed results Carbide blades quickly set the edge Ceramic finishing slot Fold-out diamond-coated, tapered rod sharpener designed for serrations, standard edges, small hooks, safety corners. Lanyard hole 3.5? long x 1? wide and weighs only 1 ounce The Madi PKS-1 pocket knife sharpener is a compact and versatile tool designed to keep linemen, straight, serrated, and safety blades sharp. With preset sharpening angles, it ensures consistent results every time. The carbide blades quickly restore edges, while the ceramic finishing slot refines them for a polished finish. A fold-out diamond-coated tapered rod makes it easy to sharpen serrations, small hooks, and safety corners. Lightweight and portable at just 3.5 inches long and 1 ounce, it also features a lanyard hole for easy carrying. The Madi PKS-1 Pocket Knife Sharpener is a reliable addition to any tool kit.