1、This whetstone plate uses diamond as abrasive material which is more efficient than normal whetstone 2、Mini size designed, it is easy to take for camping, or used as kitchen, garden sharpening tool 3、It is only 1mm thick so will not take much room and can be fixed on any flat surface 4、Much more efficiency than normal whetstones and less risk of damaging the edges 5、There are three types in different surfaces, grits and sizes that you can choose Features: This whetstone plate uses diamond as abrasive material which is more efficient than normal whetstone. Mini size designed, it is easy to take for camping, or used as kitchen, garden sharpening tool. It is only 1mm thick so will not take much room and can be fixed on any flat surface. Much more efficiency than normal whetstones and less risk of damaging the edges. There are three types in different surfaces, grits and sizes that you can choose. Specifications: Abrasive Material: Diamond Surface Grit Size Honeycombed 1000# 150*63*1mm Honeycombed 400# 150*50*1mm Smooth 1000# 150*50*1mm Quantity: 1 Package Includes: 1 x Whetstone Plate