Description: Install the experiment device model as instruction pictures shown, fill up the cup with water. Wet the cotton bird head and adjust the weight of head part and behind part, gradually, you will see the phenomenon that the water from the head pouring down into the basin other side by weight, again and again...just like a drinking bird Learning Perpetual Motion Machine Works Train your children observation capability, thinking and analytical skills Main Material: Plastic, Cotton Color: As pictures shown Size Chart: Assembled Size (L x W x H): Approx 29 x 10 x 12cm/11.42 x 3.94 x 4.72inch Package Includes: 1 Set Drinking Bird Experiment Model (with Instruction) Note: Due to the manual measurement, please allow 1-5mm differences in size Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand
