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| Best Seller ![Electronic Swing Ball Desk Perpetual Electronic Perpetual Motion Toy Electronic Perpetual Motion Toy Milky Way Annularity Model Revolving Balance Balls Physics Science Toy [silver]](https://d.bizrate.com/image/obj/30511492056;sq=75;p=0;t=ooPwmM0WTWKQVE9JRlQxe77evbZuk6332WBmP4KmtReIjT_zbuk8ZpjCcH6DJadAgcXPEZg8B3n5vfIlyoeZH9vdVSs-MEuqe_YNsb06CUMUnpJf7_wEQRgIcp3a4pvxpHQJ3fwhxlWqOm21xUgt5fw8yAsuCaYXLRGOdqACqRLp-0MbytpudATBCpCM-dQ4nK41;cc=US "Electronic Swing Ball Desk Perpetual Electronic Perpetual Motion Toy Electronic Perpetual Motion Toy Milky Way Annularity Model Revolving Balance Balls Physics Science Toy [silver]") | Specification: Item Type: Perpetual Motion Toy Material: Plastic Metal Product Size after Assembly: Approx. 22 x 14 x 25cm / 8.7 x 5.5 x 9.8in Battery: Base: 4 x 1.5V AA Battery (Not Included) Package List:1 x Base6 x Accessories Note:Please allow... more | $14.36 $12.08 go to store |
 | Newtons Pendulum Cradle Balancing : Swinging Physics Science Toys for Home Office Desk Description This newton pendulum balls ornament is made of metal and material for and safe in use. simple design but practical in use bringing much convenience to you. This professional teaching for physics teaching can train the student practical... more | $13.07 $11.63 go to store |
| Best Seller  | 2024 Interesting Metal Balanced Ball Toy Desk Physics Science Educational Toys Home Table Decoration 1�An excellent educational science tool shows the swing but also the law of conservation of momentum and energy. 2�When you are tired of studying and working you can stir the ball to hear the jingling sound to reduce stress. 3�Owning scientific... more | FREE shipping go to store |
 | Interesting Metal Balanced Ball Toy Desk Physics Science Educational Toys Home Table Decoration 1�An excellent educational science tool shows the swing but also the law of conservation of momentum and energy. 2�When you are tired of studying and working you can stir the ball to hear the jingling sound to reduce stress. 3�Owning scientific... more | FREE shipping go to store |
 | Newton Pendulum Newton Cradle School Teaching Supplies Physics Science Pendulum Specification: Material: Plastic + Metal Size: 9cm*7.5cm*9.5cm ball diameter: 1cm Net weight: 0.1KG Packing boxes Packing size: about 10*8*4CM Color: silver Package includes: 1*Swing ball ornaments more | $17.16 $11.98 FREE shipping go to store |
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