Easy to Use: Simple design of knife sharpening instructions that helps beginners and professionals achieve perfectly sharp knives every time. It is easy to use with whetstones for fast and precise sharpening. You just need to fix the angle guide to the desired position of the knife blade, then start sharpening knives. Enough to Use: The package includes 2 fixed grinding angle tools in black, enough quantity to meet your applications and spare parts when learning the grinding movement. High-quality Material: This knife sharpening guide is made of good quality high-density ABS plastic, sturdy, strong and lightweight. The unique ceramic protective layer protection guide with more durability, not easy to deform or break, so you can use it for a long time. Practical Design: This knife sharpener has a humanized design that allows you to maintain a certain angle and apply reliable force when sharpening, which is practical and economical. Applicable Places: These knife sharpener angle holders can be fixed to firmly fix the knife and keep it at a certain angle, suitable for most knives, such as fruit cutters, kitchen knives, industrial knives and more, suitable for home, office, restaurant, market, business.