NSD Powerball 280Hz Autostart Classic

Great for building and strengthening forearms and wrists.

Fun and easy to use. I'm almost 50 and had no problem using my thumbs for winding it up. It works fast and gets muscles burning.

Interesting Gyroball. Starts easily, but will not accelerate as quickly as other gyroballs. I'm recovering from elbow and shoulder surgery and find this gyroball perfect for the first phase of physical therapy. Recommended

Great device for exercising your wrists

I give 5 stars because it works for someone with strength in both hands BUT, JUST A CAUTION: The method of winding this model takes thumb strength in both thumbs. I ordered it to help rehab my hand after carpal tunnel surgery. The surgery left temporary numbness (possibly 3-12 months) in my thumb and fingers. The lack of strength plus the numbness didn't allow me to fully wind the device. I returned this model and ordered the model that winds with a string. I'm hoping that will work for me.

This product is solid, stylish, & well made. It's a pleasure to look at, & feels great in your hand. But the bad news: Winding it up does require major strength in both thumbs. One thumb will not do it. Pulling across a counter to do the winding doesn't work. We watched many videos from the manufacturer, & on YouTube. We tried to get the ball gyro to work every morning and evening. Each of us. Every day. For nearly three weeks. Neither of us could get this ball to run for more than 20 seconds. At best. In a hundred+ attempts, it only made it to a whining/whirring speed in 2-3 uses. I really like this product. But it really is hard to use. For us, it simply does not work. We had to return this product.

Excellent product. Takes a little while to get used to; but, an important piece of exercise eqpt. for your wrist, hand and forearm.

Does not have lcd that instructions show for you to keep track of your progress