Sterling Knife Sharpeners - Knife Sharpener with Black Lighweight Aluminum Body. Model STSBK. The perfect pocket sized sharpening tool for knives and broad heads. Compact sharpener measures 3" overall. Black lightweight aluminum body with lanyard hole. Easy to use. Weighs only 0.5 ounce. Bulk packed. From the field to the kitchen, the boat to the campsite, you cannot find a more easy to use sharpener. Within a few strokes your blade will be as sharp as new. For very dull knives more pressure and strokes may be required. No messy honing oils are required nor are there confusing multiple steps that many sharpeners have. Sterling is that easy. Made in U.S.A.