If you are looking for a sharpening stone, then your research is over here. Adopted of diamond material, it is practical and durable for long time use. It is not easy to get deformed and broken, bring you much convenience. Light weight and compact size, easy for outdoor fishing, fingernail grinding, etc. Features -Color: Silver -Material: Diamond. -Size: About 6.40X1.90X0.50cm/2.52X0.75X0.20inch. -With compact size and lightweight, you can store it conveniently without taking up too much space. -The carefully crafted whetstone is efficient, durable and sturdy, with excellent texture. -With keychain and lanyard hole, easy to hanging on other accessories, easy to carry. -Suitable for home use, outdoor camping, hiking, adventure, picnic, fishing, etc. -Manufactured with diamond material, it is sturdy and practical for long time use. Package list: 1 x Grindstone