Transparent Amazing Light Changing Fibre Glass Water/Juice/C..More

This cup is environmental protection transparent shine cup when pour into liquid (water, beverage, beer, etc), it will light up and flash immediately, very magical, suitable for celebrate, party, bars, gifts and so on.

Water induction cup, if no water in the cup, it will not light up.

Water induction cup, if no water in the cup, it will not light up.

Power: button cell X 2 (included). To Replace Batteries: Unscrew the battery compartment door located on the bottom of the base, place new batteries in the battery compartment and screw on the battery door.