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<div>Welcome to our store! We hope you have a wonderful shopping experience!</div>

<ul><li>Features: 
1. Kinetic Art Perpetual Motion: It is a fun way to learn science, perfect for kids to experience mechanical fun in classroom education or play with, improving children's ability to explore scientific mysteries. 
2. Conservation of Energy: It won't last forever due to air resistance and friction. Newton's Law Kinetic Art Ball can move continuously for 8-15 seconds. Good torque and centroid performances. Not only does it demonstrate pendulum motion, but it helps demonstrate the laws of conservation of momentum and energy. 
3. Unique Ornament: Made of plastic, suitable for table sports decoration. Surprise your friends with this clever toy and enjoy the fun of science. 
4. Stress Reliever: Fit for decompression in adults, it's great to release work fatigue and stress after a busy day at work, perfect for outer space science-themed classes or office decor, a great teaching tool for explaining eternal physics. Perfect for birthday, holidays, Christmas, and Father's Day gifts. 
5. Optional: Yellow (USB Version), Red (USB Version), Wine Red (Battery Version). 
Specification: 
Material: Plastic 
Color: Yellow (USB Version), Red (USB Version), Wine Red (Battery Version) 
Size: 150 x 100 x 150mm 
Weight: 225g, 275g 
Package Included: 
1 x Perpetual Motion Machine Decoration</li></ul>

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Kinetic Art Perpetual Motion Machine Dynamics Ball Cycle Art Pendants, Usb Plug-in Touch Switch

Features: 
1. Kinetic Art Perpetual Motion: It is a fun way to learn science, perfect for kids to experience mechanical fun in classroom education or play with, improving children's ability to explore scientific mysteries. 
2. Conservation of Energy: It won't last forever due to air resistance and friction. Newton's Law Kinetic Art Ball can move continuously for 8-15 seconds. Good torque and centroid performances. Not only does it demonstrate pendulum motion, but it helps demonstrate the laws of conservation of momentum and energy. 
3. Unique Ornament: Made of plastic, suitable for table sports decoration. Surprise your friends with this clever toy and enjoy the fun of science. 
4. Stress Reliever: Fit for decompression in adults, it's great to release work fatigue and stress after a busy day at work, perfect for outer space science-themed classes or office decor, a great teaching tool for explaining eternal physics. Perfect for birthday, holidays, Christmas, and Father's Day gifts. 
5. Optional: Yellow (USB Version), Red (USB Version), Wine Red (Battery Version). 
Specification: 
Material: Plastic 
Color: Yellow (USB Version), Red (USB Version), Wine Red (Battery Version) 
Size: 150 x 100 x 150mm 
Weight: 225g, 275g 
Package Included: 
1 x Perpetual Motion Machine Decoration