Floating Colour Timer

£4.00

A captivating visual sensory aid.
Turn the tube upside down and watch the liquid bubbles spiral down to the bottom of the tube.
Approximately 15 cm in height.
The surrounding temperature should be between 050 ° C.
Dimension: 135*50*30mm.
If contact with oil occurs, wash with soap water.
Keep-out of direct sunlight.
Package Including: 1 x Oil hourglass.

In stock