1、​It is made of high grade diamond, which is durable and ensures good sharpening results 2、The sharpening stone is small in size, portable and convenient to sharpen more effectively 3、Can be used to sharpen kitchen tools, scissors, cutter, shave tool, etc 4、400/600# grit double-sided sharpening stone is good for coarse grinding or fine grinding 5、Folding plastic shell protects the inner sharpening stone well and makes it convenient to carry, perfect for outdoor use Description: This double-sided sharpening stone is more convenient to use than the normal one-side item. 400# for coarse grinding and 600# for fine grinding. Folding design for portability when go camping or hiking. Features: It is made of high grade diamond, which is durable and ensures good sharpening results. The sharpening stone is small in size, portable and convenient to sharpen more effectively. Can be used to sharpen kitchen tools, scissors, cutter, shave tool, etc. 400/600# grit double-sided sharpening stone is good for coarse grinding or fine grinding. Folding plastic shell protects the inner sharpening stone well and makes it convenient to carry, perfect for outdoor use. Specifications: Condition: 100% Brand New Material: Diamond + Plastic Color: Yellow, Black(Optional) Grit(double sides): 400#, 600# Folded Size: approx. 12.5 x 3.5 x 1.6cm / 4.92 x 1.38 x 0.63inch Extended Length: approx. 23cm / 9.06inch Weight: approx. 58g Package Included: 1 x Sharpening Stone Only Note: 1. Please allow 0-2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.