All Metal Power Wrist Gyro Ball AUTO Start Wrist Exercises Weighted Solid Gyroscope Torque Ball Forearm Exerciser Arm Strengthener for Stronger Muscle and Bone

This is great for wrist strength and forearm strength.

I bought one of these years ago. It was light, plastic, and freewheeling with a stupid pull string like an old-fashioned top. It didn't work well, and it didn't last long. It was overpriced, because it came from a boutique climbing gear shop.This sucker has a metal enclosure, probably aluminum, with an industrial finish and a silicone grip band. It can be disassembled for servicing. It includes replacements for some parts. It has a metal rotor, which is where more than half the total mass is. All that spinning mass makes for high torque when you wind it up to a nice high-pitched hum. It has no pull string. If you thumb the rotor in the direction indicated by the arrows, an internal spring mechanism winds up. Then you release it, and the spring gives it a kick start, though with the sheer mass, you could also flick it a few times to get it started.There are some plastic parts I would rather be thicker and tougher plastic--or preferably just machined aluminum or stainless--but in all, this is a solidly built gadget that you can expect to get years of good use out of before it's toast.

worst product ever bought online it doesn't even work

The media could not be loaded. Product has good weight to it, is easy to start and is an enjoyable form of exercise. The spinner runs smoothly for the most part, but makes a very high pitched squeal every once in a while that is slightly concerning. (See attached video)

Great gyroscope for strengthening hands and forearms. Solid metal and heavy - you can feel the quality.Quite small so you can take it with you everywhere. Provides a good workout, improves grip strength, and helps relieve tension. Very satisfied with the purchase!

Very difficult to use ! Also note carefully there is an inspection and delay involved in return of this item.Be forewarned about both considerations!

I enjoy this. Self start is great but some finesse is required to keep it going and to make it spin faster. You must synchronize you hand/wrist movement with the gyroscope in order to maintain and accelerate the spin rate. The faster it spins the easier it is to keep it going and accelerate it. There is plenty of power in this thing. I can accelerate it with either hand to a point where I can barely hang on, and you can always make it go faster.That screeching noise only happens when your movement is not synchronized with the device or if the device is held steady while the gyroscope is spinning

Amazing gyro wrist ball, the best ever. My last one I owned was plastic, and it wore out. This one comes with extra parts for when it wears out. I had not thought about this exerciser in years and decided to try this one, as I did not know they even existed. It's a solid design and has decent weight, what a metal ball would expect to weigh. The automatic start-up function is spot on. If you are looking for a wrist gyro for strengthening and know what these are, Parallel Halo has made the best one ever!