Specification: Item Type: Grinding Stone Material: White Corundum Oilstone Color: Blue Weight: Approx. 1011g / 35.7oz Bamboo Base Size: Approx. 90x210x23mm / 3.5x8.3x0.9in Grinding Stone Size: Approx. 180x60mm / 7.1x2.4in Package List:1 x Grinding Stone1 x Bamboo Base2 x Silicone Base1 x Angle Guide Note:1. Please allow 0‑1 inch 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. Features Using high‑hardness white corundum oilstone material, durable and wear‑resistant. Double‑sided sharpening stone, using superb craftsmanship, with 2000 grit and 5000 grit. Equipped with bamboo base, double non‑slip silicone base, angle guide, sharpening stone. Non‑slip silicone base can hold the stone in place, and bamboo base can provide extra safety and comfort when sharpening knife. It can grind any metal blade or tool, suitable for kitchen knives, hunting knives or pocket knives and kitchen scissors.