Floating Colour Timer

Description

Floating Colour Timer

• 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.