Theres no reason to sharpen Smiths Field Caping Knife when one gets dull, just toss it and grab another. The razor-sharp cutting blades are made from surgical-grade steel; and come with a protective blade cover. The plastic handle features an ergonomic, nonslip design for detailed caping and skinning. Smiths Disposable Field Caping Knives are lightweight and compact easy to carry in a pack or pocket. Per 3. Cancer and Reproductive Harm- www.P65Warnings.ca.gov.