Oversized Newton's Cradle, Desk Table Decor Metal Pendulum Ball Newton Ball Physics Science Pendulum Steel Balance Bal l for Office Physics Teacher Toys- with Mirror

Will be a good teaching tool.

I was pleasantly surprised. I bought this as a Christmas gift for my young niece who is very into science. She was very pleased. She proudly shows it off on her bedroom dresser. Sturdy and looks pretty. Cant beat the price. Good quality overall I’d buy it again

Manufacturer Need To Secure Strings Until Apparatus Is Totally Assembled: Strings became entangled during assembly. Detangling string very tedious and time consuming (being careful not to break them).

I was hoping for a model of Newton's 3rd Law that was large enough and sturdy enough to use in my 6th grade science classes. We're just 1 year in, but this help up well. I've learned from past experiences, that I needed to ask students to only use this with my permission. I don't think any such device will keep those lines straight if 12 year olds treat it roughly. The students were fascinated, and it was a good teaching tool.

This works great now that we glued down the structure. Before that, the cradle movement caused the structure to become unstable and lean in. Once we glued it it seems to work great and stay together.

Giftable

First I ordered this, it was supposed to be delivered on Sunday July 25, it didn't get to me until Tuesday 27th. After it was set up by my husband, my boy swang it one time (1x) it got tangled up and on trying to untangle it, it brought. It was in my house less than an hour.

Honestly for the price i thiught it be decent quality. It looks nice but when you use it the strings arnt very sturdy so the do not keep the balls straight. Often times it makes them twist causing it to mess up.