Electric Newton Physics Balance Pendulum Newton's Cradle Des

Description:

Classic Executive Desk Toy - Wheel Revolving Balance Balls Perpetual Motion Desk Educational Toys
Powered by 4pcs AA batteries，move lightly, it would keep going on rocking around until you stop it or power off (Batteries are not included)
Kids educational physics science toy，the principles of Conservation of Momentum and Energy
Great artworks for home or office desktop ornaments, also birthday gift christmas gift for your children
Material: Metal, Plastic
Color: Silver

Specification:

Size：（L*W*H）15*10*20cm/ 5.90*3.93*7.87 inch

Package Includes:

1 Set Perpetual Motion Toy (Batteries are not included)

Note:

Due to the manual measurement, please allow 1-2mm differences in size
Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand

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