Water Clock fidget is a centuries-old device for

is a centuries-old device for measuring time where fine grain sand runs from an upper glass bulb into a lower glass bulb

The wardrobes of the figures are resplendent in color and historic detail

respond to music

Stones vary in size

The kit includes a full set of snap-together planets

Water Clock fidget is a centuries-old device forFeatures: Science and technology meet function and form this Water Clock aka hydro clock. The Water Clock operates without batteries, electricity or any other power source. Instruction manual included. This 5. 5"x 4" H2o clock is available in Ocean blue. Simply add water to the water clock to fuel the cell. This provides outstanding, natural power for months. Details: Water Clock Science and technology meet function and form this Water Clock aka hydro