KitchenArt's 1 Cup Adjust-A-Cup is a 4 in 1 measuring cup that measures liquids, dry ingredients and solids! Simply adjust the marked sleeve to the measurement you need. Top rack dishwasher safe - for best results, always separate the sleeve from the base of the cup before placing in the dishwasher. For optimum performance, rub the seal with cooking oil prior to use. Simply twist and pull to adjust the sleeve to the desired measurement.