Sharpening Simplified: This adjustable angle knife sharpener gives you a professional-level razor sharp edge by allowing you to sharpen your blades at the correct sharpening angle (12°, 15°, 18°, 21°, & 24°). Designed for straight-edge blades only; NOT suitable for serrated knives or scissors. Ease to Use: This handheld knife sharpener system has an ergonomic design and is extremely easy to use. Simply place the blade in each of the slots and gently pull the knife through a few times for fast, effective sharpening Orange Ninja to Sharp them All: This one tool can be used as kitchen knife sharpener, pocket knife sharpener & hunting knife sharpener. This professional sharpener is designed for precision sharpening, perfect for maintaining all types of knives Razor Sharp Edge: This chef knife sharpener is engineered with high-quality materials to ensure a durable and reliable knife sharpening system that will endure extended use & providing you with a razor sharp edge within minutes Premium Quality: Not all manual knife sharpeners are created equal. Our professional knife sharpener kit is crafted from high-quality ABS plastic, it’s strong, durable and designed to last a lifetime