This heavy item is likely a container for soy sauce or vinegar. Opening: 13 cm. Height: 6 cm. It's new. It was displayed in the kitchen. The inside is pure white. It might be a bowl used for grinding something. Returns are absolutely not accepted after shipping. No claims, no returns. I will not reserve items. I will not offer extreme price reductions. Priority will be given to the first person to purchase. I try my best to respond to comments and ship items promptly. I strive to ensure a pleasant transaction for both parties. Thank you for your understanding.