Strong line-- Our newton cradle use high quality nylon line which is strong enough to not be broken easily
Swing Time--The balance balls continue in perpetual motion for only 15-20 seconds due to the resistance of the air and friction, but it won't influence the effect of playing although it can not reach the seamless convergence among balls in the vacuum.
Physics Education Toy--It is a nice gift, we can send it to our friends, children, family.
Application--You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy.
Satisfaction Guranteed--If there is any problem with your product, please contact us in time, we will definitely help to solve it
Shipping takes place within 3-5 business days. If there is a problem with the shipment of the product, we will notify you via the email address you entered when ordering.
👶 Is free shipping available?
We do not currently offer free shipping. However, this may be added at some point. We apologize.
👶 How can I get a tracking number for my order?
If your order has been shipped, we will add the tracking number to your order and notify you via the email address you entered when ordering.
👶 How do I process a return or exchange?
For returns or exchanges, please contact us within 14 days of receiving the product, along with a receipt or screenshot of the purchase, and a photo of the product with the packaging or tag intact.
