Double-sided Sharpening: The honeycomb design ensures that the dust generated during the grinding process not affect the sharpening. Efficient Material: This knife sharpening stone uses diamond as abrasive material which is more efficient than normal whetstone and less risk of damaging the edges. Due to the high hardness of the material and the low loss during use, our whetstone plate can be used for a long time. Convenient: This sharpener stone comes with silica gel base, non-slip and safe to use. The whetstone kits are small in size and light in weight, so they are easy to carry and store without taking up too much space. Easy to Use: You just need to place on the sharpening stone and move it back and forth several times while maintaining an angle of about 30°. This Diamond Sharpening Plate can be used by everyone from stay to professionals. Various Applications: The sharpener stone set is very suitable for grinding family kitchen and outdoor tools, woodworking chisel, jade, seals, or carving knives. This sharpening stone kit definitely a & friends. color:Silver Material:diamond size:About 155mm Package Contents: 1 x Double-sided Sharpening(400/1000#) Only the above package content, other products are not included. Note: Light 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.