A colourful cup that's fantastic for parties, the Flashing Rainbow Cup is a 500ml drinks cup that has colourful LED's in the base. Choose from blue, violet, red, green or colour change modes by clicking the button in the base for fabulous light up effects that are ideal for parties. LED Light up drinks cup 500ml volume Red, green & blue LED's Battery operated: 3 x AG13 batteries (included)15cm tall x 9cm wide Safe for food use Do not use in microwave, dishwasher or freezer Take care not to get the base of the cup wet