4 in 1 Adjustable base raises to create 250ml (1 cup), 1/2 cup, 1/3 cup, and 1/4 cup measurements, all in a single cup Water-tight seal around the adjustable base squeegees Upcup clean as it moves, making Upcup perfect for peanut butter, mayonnaise, honey, and other sticky ingredients Adjustable base raises all the way to the top to scrape out every last drop and for complete and easy cleaning in the dishwasher Easy-to-read mL and fluid oz measurements are both printed in red and embossed in the BPA-free Tritan – which will never rub off. Heat-resistant up to boiling point of 100°C / 212°F