This item is a set of temperature-sensitive color-changing Korean soju glasses. When a cold beverage (below 21°C/70°F) is poured into the cups, the white cherry blossoms on the branches react to the cold temperature and magically transform into a vibrant pink color. • Capacity: 50 ml to 60 ml (approximately 1.7 to 2 fluid ounces) • Height: 60 mm (about 2.36 inches) • Top Diameter (Mouth): 50 mm (about 1.97 inches) • Base Diameter: 35 mm (about 1.38 inches)