Features: 1.The high-quality whetstone manufactured by premium grade natural stone, which ensures good sharpening results and long service life. 2. This sharpener comes with a non-slip base so as to hold the whetstone accurately and sharpening safety. 3. Dedicated knife sharpening kits come with 6 size:180 400 800 1500 2000 3000 , meeting your different needs. 4. Beautiful appearance and appropriate size(16.5 x 5 x 3 cm), portable and convenient to sharpen more effectively. 5. Suitable for most grinding operations: kitchen tools, shears tools, straight for razor, scissors, cutter, precision tools, garden tools, shave tools and art appliance, but it is except serrated. Specification: Item Type: Sharpening stone Features: 100% brand new, good quality & high performance Sharpening System Particle Size: 180 400 800 1500 2000 3000 Dimension: Approx. 150 x 20 x 5mm / 5.91 x 0.79 x 0.2in Package List: 6 x Sharpening Stone Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors. Such as brightness of your monitor and light brightness. .