DjuiinoStar Heavy Duty Gyroscope (Solid Metal Rotor): Sturdy and Stable (Provides Good Gaming Experience)! High-End Office Toy, Addictive Science Gear DG-5PRO-04

Getting to know how to use it is easy and fun so no complaints here.

works okay as an instructional toy, but rotation is not very long lived, But if you want to teach someone about angular momentum, it works well on an elementary level, but due to frictional forces neither direction nor magnitude are conserved for very long. That said, it is attractive & solid.

Stupendiously good quality, runs forever. Good instructions and extra materials included.

Good quality. The grandkids enjoyed watching the gyroscope defy gravity. On the downside - it was hard to thread the string through the hole in order to wrap the pull-string to spin the scope. Young grandkids were interested but definitely requires an adult to thread the gyroscope and pull the string with enough force to make it spin.

I ordered this top from a link given to me by a friend who had ordered one and demonstrated it to me. But when mine arrived, it was 'slightly different'... It had the good bearings and long spin - but the stand had a simple modification which no longer permitted the top to operate 'horizontally' when supported on one of its axes. As I recall, the stand supplied with my friend's top was more stable and was higher. I am pleased with the performance of the top itself. This high quality top is a far cry from the 'toys' I had as a child. Thanks for providing this. -- John.

A diferencia de otros, el cuerpo del gyroscopio gira menos. Muy buen acabado. Silencioso.

I bought two. Neither are in balance, and will not work as a gyroscope. Waited too long to return. Piece of expensive junk.

Good quality but difficult to get the string threaded on the disk. I bought it as a birthday gift for my grandson and he’s only 6. He’ll need his father to get it working right. It will take a lot of practice but it really needs the help of an adult.