This is a ceramic grater. It has a non-slip base on the back, making it convenient to use. It's suitable for grating condiments, as well as for making baby food and food for the elderly. Material: Ceramic Size: Approximately 18cm in diameter The box has some stains. There are small stains that are barely noticeable (please see photo 5). Although it is new and unused, please understand that it has been stored at home. Thank you.