"Add a touch of magic to your drinks with our LED 10 oz. Cube Cup! Perfect for home, parties, weddings, and gifts, this square crystal cup is sure to make your event unforgettable. Illuminate your beverages with multicolor LEDs that create a dazzling display. Each cup features an easy switch button function for convenience. With three AG13 batteries included and installed, these cups are ready to light up the night. Please order in increments of 1 cup. Note: Scratches and hairline cracks in LED acrylic cups and glasses are a normal part of the manufacturing process and are not considered defective."