Smiths Diamond Retractable Sharpener will become your go-to when you need to sharpen knives and fishhooks in the field. Reversible, retractable steel rod features a tapered-round end for serrated blades, a half-round end for straight blades and a fishhook groove. Unbreakable steel rod is coated with 400-grit monocrystalline diamonds. 7L aluminum housing protects the sharpening rod and fits perfectly in a shirt pocket. Pocket clip for secure carry. 7L x 0.5W x 0.5D. Wt: 1.28 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Sharpeners.