Water clock without battery red

Opt for this alarm clock in the shape of a blue ball and participate in the protection of our environment by using just water to power it and make it work!* Diameter : 7.3 cm * Energy : water * Digital display : time and date Functions : Clock Contents : 1 Clock* Diameter : 7.3 cm * Energy : water * Digital display : time and date Functions : Clock Contents : 1 Clock