High Quality Material: This knife sharpener is made of good quality high density ABS material which is strong, durable and lightweight. The unique ceramic protective layer protects the guide with great longevity. Convenient Design: This guide knife sharpener holds your knife at the perfect angle for sharpening, helping you hone your knife with the perfect angle on the grinder, which is convenient and labor-intensive. Easy to Use: Simple design of the knife sharpener guide that allows beginners and professionals alike to get razor-sharp images every time. It is easy to use with whetstones for quick precision sharpening. You just need to attach the angle guide to the appropriate location of the blade, then start sharpening the knives. Useful tool: regular sharpening the knives greatly improves the cutting performance and keeps at their best. So this sharpener guide is a nice tool for your kitchen and outdoor activities.