• High-quality double-sided sharpening stone for a complete sharpening of your kitchen knives. • Includes two types of grit: Fine Grit 1000 for maintenance and initial sharpening, and Extra Fine Grit 3000 for finishing and polishing. • The 1000 grit is ideal for semi-rigid and ultra-rigid blades that still retain part of their edge. • The 3000 grit is perfect for blades with a high degree of hardness and rigidity, providing a polished finish. • Comes with a black silicone non-slip base for greater stability during sharpening. • Stone dimensions: 18 x 6 x 3 centimeters. • For optimal use, soak the stone in water for 10 to 15 minutes before using and add water during the process if necessary.