About us ARCCI is a professional sharpening tool manufacturer. We specialize in providing our customers with high quality and reasonably priced sharpening products. Sharpening Instruction 1.Place the plastic tip of the sharpening rod on a solid surface. Apply lightly downward pressure to avoid slipping during use. 2.Place heel of your blade at the top of the sharpening rod at a 20 degree angle. Sharpen the knife from heel to tip and repeat 2 - 3 times, then turn to the other side of the knife until blade is sharp. 3.Clean the knife with water and dry it. Clean the knife sharpener with non-abrasive brush. Note: 1, Keep stable when sharpening. 2, The angle between the sharpening rod and the knife should not be too large, keep at a 20 degree angle.