The EdgeTek Fishing FlipStik offers an easy carry sharpener with a 100% diamond coated surface and oval contour for sharpening a wide variety of blade edges. It is lightweight and compact with a handle that also doubles as a carrying case. For those on-the-go who may need a touch up a knife or fish hook after lots of field work don't be caught without a FlipStik! 325 Coarse Grit flat with hook sharpening grooves. 750 Medium Flat side.