Package Include: These whetstones are small in size and light in weight, so they are easy to carry and without taking up too much space. Unique : honeycomb ensures that the dust generated during the grinding process will not affect the sharpening. The diamond sharpening stone has a non- base to that it will not during use. Material: These sharpening have high and durability because they are made of diamond material. Due to the high hardness of the material and the low loss during use, sharpening can be used for a long time. Convenient to Use: You just need to place on the sharpener stone and move it back and forth several while maintaining an angle of about 30. You can always adding water on it while sharpening, which make the lubricating effect of grinding will be great. Multiple Application: The whetstones are suitable for grinding all kinds of kitchen knives, scissors, snowboard tuning work, carving and garden tools, etc. Whether it is household props or outdoor tools, you can use whetstones to sharpen it and easier to use. color:Silver Material:diamond size:. 151 x 63 x 1mm Package Contents: 2 x Sharpening Stone(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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.