Tri-Grit: 325 Coarse, 750 Medium, 1200 Fine. Size: 4" x 1/2" (10.2cm x 1.3 cm) Length: 9" (22.9cm) open, 5" (12.7 cm) closed. Weight: 3 oz. The EdgeTek Ultra FlipStik offers an easy carry, three sided 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 after lots of field work, don't be caught without a FlipStik!