The KichenArt Adjust-A-Cup is constructed from a durable plastic, that is dishwasher safe. The adjustable measuring cup makes it easy to get the precise measurement needed for liquids, dry goods, and semi-solid ingredients. To use; simply twist and push to the desired measurement and the extra leaves the container. The mini adjust-a-cup has a one ounce capacity and measures in tablespoons, teaspoons, ounces and milliliters. Made in China.