Glantop Upgrades Newton’s Cradle Art in Motion with Metal Balance Ball and Solid Wooden Base (Black, Medium Size)

I had same sort of thing years ago. For some reason this does not work properly. I think the ball bearings are not the same weight or out of shape a tiny bit. So it does not click side to side properly but for 5 pounds you get what you pay for I suppose.

So disappointed when this arrived, although the frame was sturdy the wires attaching the balls were tied together so tight I was unable to separate them without breaking it. Now in the bin.

Poor quality, the 4 legs that sit in the base don’t fit properly hence it keeps falling over, the balls then get knotted up. This was a Xmas present for my autistic son, whom is extremely disappointed and does not understand why it doesn’t work.

All OK ... i just thought by the sales explanation it was a lot bigger ...

Does what's expected.

The U frames push in, but seem to be sturdy, a nice simple Physic demo

The base is solid wood but transparent wires aren’t strong. So be careful when play when you try to swing balls. Mine was damaged but return was smooth.

a bit fragile - strings v easily tangled if played with by kids!