[Affordable & Practical Set] This 4 grit combination allows customization of the sharpening process to meet speed and smoothness needs. [Diamond Material]Crafted from premium diamond abrasive, the sharpening stones are . They maintain their shape well and the diamond powder does not easily come off during the sharpening process. [Accurate & Effective]These sharpening plates can work solo or alongside sharpening devices. This adaptability results in a more precise and effective sharpening process, ensuring blades. [Versatile]The diamond sharpening plates are Perfect for a variety of cutting tools, including tools grinding, scissors, chisels, planers, plane irons, and kitchen knives. They a broad range of sharpening needs. Color: Silver & Black Material: Diamond Package Contents: 4 x knife sharpener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.