* Capacity: 1-1.50 oz. * Twist to adjust measurement * Made of high quality plastic. * Dishwasher safe * Ibili Adjustable Liqueur Measuring shot glass allows easy measuring of liquor with a twist function in convenient way that adjusts the measurement of various volumes of the shot glass so you get accurate results everytime. It is made of high quality clear plastic which is easy to read for liquid measurement. You can twist to choose from three different measurement such as 1 oz., 1.25 oz. and 1.50 oz.It is dishwasher safe.