Due to various factors such as different kiln temperatures and batch variations, it is impossible to ensure that the color of every batch of sharpening stones is consistent The color may also differ from the picture; please refer to the actual product for details Purchase instructions: One box contains 150 pieces, one unit contains 600 pieces It is recommended to purchase by the box or in bulk To avoid damage during transportation, please purchase the item as a whole.Please be careful when sending express delivery.Sharpening stones are fragile items and cannot be guaranteed during express delivery and logistics transportation No compensation will be provided for damages, no returns, exchanges, or replacements will be offered, please be aware