Black Base Newtons Cradle Pendulum Balls Physics-

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Specifications:
This product needs children to manually brain, and to stimulate childrens learning fun.
It demonstrates the principles of Conservation of Energy.
Pulling back one or more of the balance balls, then release them, the same number of balls will swing up on the opposite side.

Name: Newton Cradle
Product Material: ABS Plastic
Product Power Supply: 4 x AA Battery (Battery Not Included)
Product Principle: Energy Conservation
Features: Wear-resistant, Durable, Colorful Luminous
Size: 15cm x 15cm x 11.5cm/5.91" x 5.91" x 4.53", 12cm x 12cm x 9cm/4.72" x 4.72" x 3.54" (Approx.)

Notes:
Due to the light and screen setting difference, the items color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Includes:
1 x Newton Cradle (Battery Not Included)
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