Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office(7 Beads)

Good item. Just what my 8 y.o, grandson wanted. He’s happy so I’m happy.

My son really loved this, it was one of his birthday gifts. It's stylish and delicate and looks nice on his desk.

It's ok for the price. Not high precision but good enough as a child's/teenager's toy or for general fun use. I didn't have any packaging problems: it was very well packed and everything was held in place by solid foam blocks, with no chance of the wires becoming entangled or anything, if unpacked sensibly.

Works perfectly

Don't buy this product sending back tomorrow is cheap doesn't work properly and poorly made AVOID

As described

Best buy for my room in school, children love it

Not top quality. But does what is supposed to do.

Very nice but beware of tangling nylon cords if used with too young of child. I recommend this for 8 yr old and up.

良い。届くのに少し時間はかかるがものはいい。

Alles gut.

Tener un péndulo de Newton era un deseo de mi hijo, y estas navidades ha sido la ocasión perfecta. Había muchos modelos a elegir, y todos tenían algunas malas críticas que nos hicieron dudar en cual coger. Pero éste, ha sido todo un acierto. No es que dure mucho rato el movimiento ,pero a los padres, ya nos va bien que así sea..

Pendule de Newton, conservation de la quantité de mouvement.