Newtons Cradle Balance Ball ABS Base Metal Physics Science Pendulum Science Psychology Puzzle Desk Toy Newton Swing Ball for Living Room Drawing Room and Office

Not suitable for kids actually it's not suitable for adults even and not for human use at all . It's just small tiny robe which gonna broke quickly.. it's For human use for the 1st 5inutes only!

The pendulum is lighter than expected. This is not accurate and the motion damps quickly