... use, ideal for outdoor sports knives and fishhooks Pokect knife sharpener,small,price cheap and easy to carry,the whetting part ... is made of super durable special ceramicPokect knife sharpener,small, price cheap and easy to carry,the whetting ... move.2. As the picture,make the knife, repeat several times for fine grinding.Materials: ABS and ceramicCompact and portableGrinding surface ...