The perfect 3 in 1 design: -3 x levels, 3 x materials, 3 x sharpening methods No.1 diamond sharpening rod for coarse grinding No.2 solid tungsten steel disc for repairing, No.3 special ceramic rod for fine grinding and polishing. . High-quality materials: -The handle is made of ABS plastic, which is heat-resistant, high-temperature and impact-resistant. the inner side of each sharpener slot consists of tungsten steel, a diamond sharpening rod and a ceramic sharpening rod. The quality is outstanding. . Stylish ergonomic design: -The ergonomic handle enables right-handed and left-handed people to use it easily. The non-slip grip bottom keeps the sharpener stable and feels good in your hand, The rustproof plate with anti-slip pad on the bottom provides a more stable floor. . For almost all knife types: -The knife sharpener is suitable for a variety of knives, such as bone cutter, slicing knife, paring knife, fruit knife, utility scissors, etc. Thus, your daily needs are met. . Simple and safe operation: -The non-slip rubber mat on the bottom provides a firm stand to prevent slipping. Simply place the knife in the slot and sharpen 3 or 5 times for quick sharpening of the damaged or dull knife without damaging the knife. .