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$21.99$26.29Save $4.30

Product description
brand new and high quality
Material: Metal + ABS
Color: Black
Color: Black
Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.
Friction and damping effects are also observed.
Often used as a toy to amuse people.
Includes steel balls, plastic frames and base.
Great gift for everyone.
Item size: 12.7x10x7.5cm
Quantity:1 PC
Note:
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
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