NSD Powerball 280Hz Autostart Classic

High quality and very durable. Much better than the cheap knock offs available. Really gives my forearms and hands a great workout. Takes a little while to get onto motion, but once body learns it it’s great.

Great for building and strengthening forearms and wrists.

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

Item arrived as stated. I woukd have liked the directions included with the ball but you have to look it up. Anyway tried the ball for a couple times and decided it was not something I woukd use that much. Due to the price I coukd not see paying this price for something I woukd not use that much. Contacted seller and they immediately issued a refund. Very good company to work with.

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.

Works as advertised

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.

I had 10 other people try to make this work and no one even got close to getting it going.

Just how it supposed to be , so much quiet than the older version i had

似たものがたくさん出ていますがこちらはオリジナルだそうで、 やや高価ですがトラブルの心配が少ないです。 手首、指、肩から肘のトレーニングに確かに有効です。 使い慣れると負荷の加減ができるので、 強くも弱めを長くも自由自在です。 難点は、ウォンウォンとプルバックの駆動音が出ることです。 それでも、類似商品の中ではマシなほうのようです。 ゴルフや野球など、スポーツされてる方にはおすすめです。

Me sirve para fortalecer las muñecas. Los antebrazos se ponen a tono también. Buen producto

I got one of these several years ago to help with some wrist and forearm injury due to over-practicing guitar. The reason I got this new one is that I dropped my old one whilst using it (very solid drop onto a wooden floor), and the self-windup mechanism broke. Not bad, considering it is a good 4 years old and I use it every morning as part of my exercise routine. Thing is, I didn't realise how much I had messed my first one up by oiling it in an attempt to do good maintenance, a year or so ago. I am very happy that my old one broke (well, it didn't break, it just wouldn't wind up on its own, so I replaced it for the convenience really) because I now realise how important it is that there is internal friction, so that it really has that gyroscopic feel of the ball fighting your wrist/forearm, which is why is works so well to get blood flowing to the wrist and forearm. So to repeat myself, don't oil it ever! I highly recommend one of these Powerballs for anyone who plays a musical instrument like piano, or strings, where fine muscle control is so important. It helps prevent RSI and helps recovery, which I have benefited from. I use it every morning, and also for a minute or so before playing guitar, and I can feel how well it brings blood into the forearm, which is has so many nerves, tendons and ligaments, all of which need blood to flow to them to keep them working well. The Powerball stimulates the area brilliantly.

Top, fonctionne parfaitement et procure une congestions assez rapide des avants bras donc parfait pour une rééducation post epicondylalgie par exemple.