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YPSLZY Kinetic Perpetual Marble Machine,Rolling Ball Perpetual Motion Machine,Office Desktop Ornament Decompress Decorative Toys Science Physics Gadgets(Black)
Kinetic Perpetual Marble Machine,Rolling Ball Perpetual Motion Machine,Office Desktop Ornament Decompress Decorative Toys Science Physics Gadgets ★ Talented Perpetual Motion Machine The infinite looping perpetual motion machine will amaze you. The non-stop rolling ball looks funny and easy to fascinate youmakes, everyone want to buy one to play, surprise your friends and make them scratch their heads with this clever toy. ★ Design & Working principle Kinetic Art Perpetual Motion Machine.The appearance looks simple, but the technology and design behind it are quite complex.Using the Principles of Electromagnetics

Price is $38.00
Price: $37.99