Stainless Steel Knife Sharpener for Double-Edged Blades, Ambidextrous ★ Black and metal colors that easily match any kitchen (compared to yellow-green or red) ★ The whetstone part and handle are separated for safety. ★ No cover, so it can be used immediately even during busy times. Dimensions: Approximately 20.556cm Materials: Sharpening part / Ceramic, Tungsten steel Base / EVA Body / Polypropylene, Stainless steel Made in China ※ There may be some burrs from the manufacturing process. -------------- ◆ How to Use ❶ Place it on a flat surface and hold the handle down. ❷ Insert the knife blade into the sharpening part and sharpen it while pulling it towards you. ◆ Precautions for Use ● Insert the knife blade into the groove and pull it towards you with light force 4-5 times. (Do not sharpen back and forth) ● Use on a stable, flat surface. ● Be careful not to slip due to water or oil. ● Hold the handle firmly and do not bring your hand close to the knife blade. No. ① is the coarse grit (tungsten steel). No. ② and ③ are the fine grit (ceramic). ※ ② and ③ are the same fine grit. Use in the order of ① coarse grit → ②③ fine grit. -----------------------