US Fast Shipment Tuscom LED Light Newtons Cradle Up Kinetic Energy,for Home Office Science Toys Home Decor Children's Puzzle (Black)
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💘 Fast delivery in the US, 2 to 7 days to arrive Quantity:1pcs. Product Material: frosted glass + fishing line + plastic base Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy💘 Friction and damping effects are also observed Includes steel balls, plastic frames and baseBatteries:4 x AA batteries(Not Included) Glowing Newton ball swing more dazzling at night, the base has a luminous plate, projected onto the glass beads, glass beads showing colorful, very attractive
💘Size:12*12*9cm. Easy and convenient to use.Package Include: 1 x Newtons Cradle LED Light Up Kinetic Energy Home Office Science Toys Home Decor
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