Carry the disco around with you at parties with this light up LED plastic drinks tumbler, it holds just shy of half a pint of liquid and has a simple push button on the bottom, offering 3 modes of light, including 2 speeds of flash, and a static option. The bottom can be popped off with a small flat head screwdriver to remove the light unit if you wish to submerge the cup, or change the batteries. The cup has 3 x LR44 batteries already installed so you\'re good to go straight away! 13cm Tall x 8cm Diameter5 x multi-coloured LEDs3 light settings3 x LR44 batteries included