QLKUNLA Newtons Cradle Balance Balls Science Physics Gadget Desktop Decoration Kinetic Motion Toy for Home and Office

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

My son requested one of these for Christmas. Well made and he loves playing with it.

It's smaller then I thought it would be but still looks and works great.

The product came with one of the strings broken, thankfully I was able to superglue it back

This Newton's Cradle was a great teaching tool—my students grasped the concept more easily. Monitor use as the strings can tangle. It arrived promptly and was perfectly packaged.

This item is very poor quality. I had to have it sent twice. The first time I "exchanged" it because my son really wanted it. It arrived in a tangled mess with broken strings. When the replacement was sent it arrived in the same condition

This 7-ball Newton’s Cradle is a great desk decoration and surprisingly fun to watch. The balls are well-aligned and the motion is smooth, clearly demonstrating the physics principles in a calming way. I keep it on my office desk, and it always draws attention. The clicking sound is soft and not distracting, making it perfect for a work or study environment. The base is stable and setup was very easy. A great gift for science lovers or anyone looking for a unique desk accessory. Very happy with this purchase.

Bought for family Christmas present and lived by all! Great value!

Fine as a pre-teen toy

Marche très bien

The item delivered was much smaller than indicated, the base was only 9cm x 8,5cm and the height was only 9cm. The principle of conservation of momentum was demonstrable and so will be adequate for its purpose. However I was disappointed with the size. This needs to be amended in the product description.

良い。届くのに少し時間はかかるがものはいい。

Quality was great for the price, solid foundation so it continues to function well now. Size is great for popping on a desk .