The high-quality sharpening stone in orange/white features two different grits. The orange side with 360 grit is used for the initial grinding of unevenness and for resharpening, while the white and finer side with 1000 grit is used for subsequent honing and polishing. The sharpening stone should be soaked in water for about 5-10 minutes before use. The product comes with an angle holder that makes it easier to fix the sharpening angle. The dimensions are 20 x 5 x 2.5 cm.