Home decoration office desk decoration of France Paris architectural model alloy arts and crafts Arc de Triomphe Tower church Paris combined building

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.
Suit for both kids and adults, excellent for learning science, killing boring time and releasing stress, which makes it a good present for birthday, holiday.
Place of Origin:China
Use:Office desktop decor, Business gift
Logo:Custom logo
Color:As pictures