Lansky Fish Hook and Lure Sharpener LFISHMeasures 4 3 4" overall. Medium grit alumina oxide sharpening hone. Multi grooved sharpening stone allows you to quickly and easily sharpen most sizes and shapes of fish hooks. Each groove has been designed with special attention to width, depth and angle to best sharpen various hook designs and sizes. Fingergrooved composition handle with lanyard hole is made of marine grade materials and will not discolor in saltwater applications. Easily attaches