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THY COLLECTIBLES Unique Semicircle Newtons Cradle Balance Balls with Mirror 5.5 inch Desk Top Decoration Kinetic Motion for Home and Office
These little steel balls will keep you entertained all day The back and forth motion is a soothing experience you'll enjoy day after day, learn about the conservation of momentum and energy Desktop display version of Newton's cradle performing based on Newton's Law Balls are made of stainless steel. Size Approx L5.3 x W4.5 x H5.5 Conservation of Momentum and Kinetic Energy Dimensions 5.8 x 4.8 x 1.7 inches, Weight 8.8 ounces, Manufacturer recommended age 13 years and up, Rank Toys & Games Educational Science Kits 2752, Is Discontinued No

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Price: $11.29