1.VERSATILE GRINDING COMFORT Ideal for outdoor camping or at home, the unique foldable design of this whetstone goes beyond protecting sharpening surfaces from damage. In addition, it greatly improves the convenience and of transportation, allowing you to sharpen your knives anywhere with ease. 2.HASSLEFREE USE The honeycomb pattern of our folding whetstone ensures fast and even sharpening for a precise edge. With moderate thickness and low labor due to our exclusive design, sharpening is becoming less labor intensive and more efficient. 3.GOOD COMPATIBILITY Equipped with 400 mesh coarse grinding surfaces and 600 mesh fine grinding surfaces, our doublesided multigrain foldable whetstone meets all the requirements of different knives from coarse to fine grinding. 4.D GRIP Due to the blunt handle, nonslip and well made, this foldable whetstone provides effortless operation, even during longer grinding courses.