NSD Power Essential Spinner Gyroscopic Wrist and Forearm Exerciser

Amazon Price: N/A $19.99 (as of May 28, 2017 11:39 am – Details). Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the Amazon site at the time of purchase will apply to the purchase of this product.

Innovative Gyroscopic Resistance Training makes it easy and fun to exercise Anywhere

Wrist movement
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The innovative exercise machine will allow you to exercise and work-out ANYWHERE!

Don't let the small size fool you. Pick one up, spin it up to 10,000+ RPM and you'll be amazed by the amount of physical work required to keep it spinning at speed, using such a small compact motion. Go ahead, feel the burning forearm after a minute of use. Because the resistance is provided by angular momentum built up through a spinning mass, a few minutes a day on our Spinner can be equivalent to hours of full motion work with a dumbbell or a curl. For athletes, amateur and professional alike, strong grip and forearm provide the ultimate in power, speed, and control in just about everything you do. Be it golf, tennis, baseball or just about any sport that involves the use of hands and arms, using the NSD Spinner will allow you to hit it harder, hit it faster and hit it straighter. Besides the physical benefits, it is just downright FUN to play with. Challenge a friend. Challenge a co-worker. Or a family member. See who can make the Spinner spin faster or glow brighter. See who can keep their Spinner spinning longer. Or break it out during "break time" at work as your co-workers gather to watch in awe. You can have fun while exercising, or exercise while you have fun.

Tips on Operating your NSD Spinner

No battery required; Just like riding a bike! Your hand is the battery of this device. The motion of your hand rotating the Spinner is similar to making ice cubes swirl inside a glass. The essence of operating the Spinner is not about how fast you rotate your wrist. It’s about how to synchronize your wrist rotation to the momentum and timing the rhythm of the rotor’s gyration. The faster the rotor spins, the easier it is to operate. Make sure you start the Spinner with sufficient speed.


*Keep your Spinner from dusty environments. Don’t put your Spinner on the carpet or any fabrics. Dust may be brought into the internal surface of the shell by the rotor and make the inner tracks dirty. Eventually it would make noise as the rotor spins. *Wash your hands before using the Spinner. Sweat or lotion on your hands will decrease the capability of speeding up the Spinner's RPM. The Speed is increased by the friction between the spinning rotor and the inner tracks. Never lubricate your Spinner. Oil is the killer of its friction. *Clean your Spinner periodically. To clean the Spinner, take off the rubber band, unscrew the shells with a precision screwdriver, insert a coin into the gap between the upper and lower shells and then twist the coin to open the shells. Once you disassemble the Spinner, (remove the digital counter first if your model is equipped with it) use water ONLY to clean the tracks and shells and then dry the parts before re-assembling. For PB-688 series models, you may also reverse the two inner tracks to make your Spinner spin as smoothly as new.

Verify Genuine NSD Products

Counterfeiting is a form of fraud that deceives you into buying poor quality and unreliable products by stating otherwise, and offers none of the quality and reliability that comes with an Original NSD Power Spinner. To protect you against such fraudulent practices, NSD has taken steps to ensure that the products you have purchased are adequately protected with security "NSD" marks on the shell and the Printed Circuit Board, PCB, in the Digital Speedometer to prevent counterfeiting. In addition, all NSD Model Numbers start from two capital letters "PB" (ex. PB-688AMLC Purple). On every single packaging box and user manual, you can find mainly international patent numbers that NSD was granted. You may also spot a counterfeit by the following: Missing NSD logo on product or packaging; Signs of repackaging; Rusty PCB in the digital counter; Questionable price and Poor quality. ***To help consumers distinguish genuine NSD products from knockoffs, NSD markets and promotes its products with the names, "NSD Spinner" and "NSD Power Spinner," in North America. ***

NSD has developed many patented innovations below since 1992:

Classic NSD Power Spinner, PB-188 series, in 1993 Battery-powered Speedometer, SM-01, in 1998 Fluorescent NSD Spinner powered by an inner generator, PB-188L series, in 1999 LED-Matrix displaying top speed Spinner, PB-188P, in 2004 Formula One cars' engine sound effect Spinner, PB-188S, in 2006 Metallic NSD Spinner, PB-388 series, in 2008 AutoStart NSD Spinner, PB-188A series, in 2010 Multi-color lights NSD Spinner, PB-188ML series, in 2011 Bluetooth enabled NSD Spinner in 2012 AutoStart & Fluorescent featured Spinner, PB-188AML & PB-188AMLC, in 2013 Precision Sterling NSD Spinner, PB-588 series, in 2013 Break-Resistant NSD Spinner, PB-688 series, in 2013 Battery-free with Amber Backlit LCD Screen Speedometer, SM-02, in 2013 AutoStart & Break-Resistant Metallic Spinner, PB-888A series, in 2014

The NSD Highest Standard

Decades of NSD research have achieved performance innovations for the world’s ATHLETES, TRAINERS, and RSI SUFFERERS. In the process, NSD has raised the bar of durability and functionality, and our inventions now serve the industries of Health, Fitness and Sports. Each and every NSD Spinner that leaves our factory has to meet the toughest quality standards in the industry. Our manufacturing and assembly processes are monitored closely and each Spinner is QC tested vigorously to ensure you are getting the highest quality product available. NSD Spinners are certified under the stringent REACH and RoHS directive established by the European Union for the protection of human health and the environment from the risks that can be posted by chemicals. This is the NSD Standard.

Compare Products

PB-688 Amber

PB-688C Green

PB-688LC Blue

PB-688AC Black


Ergonomic Grip

Military-Grade Plastic Shell

Patented Break-Resistant Structure Design (Worry-free to drop)

2X Lifespan; Reversible & Renewable inner tracks

Battery-Free & Amber backlit LCD Display Counter SM-02

AutoStart Internal Pre-tensioner

LED Lights powered by an inner generator

Speed Variable Multi-colored LED Lights

Product Details

  • Shipping Weight: 12.6 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00A7Q1GSC
  • Item model number: PB-688-PARENT

Customer Reviews

Obviously entry level, but VERY effective!

61 people found this helpful.
 on March 23, 2013
By zKi Comp
I was able to pick up this NSD Powerball for $17 here on Amazon and what a steal!

Oh Yea.. Feel The Burn!

3 people found this helpful.
 on March 22, 2017
By ☮ S.Trasny
I bought this NSD Power Essential Spinner Gyroscopic Wrist and Forearm Exerciser on a whim after trying numerous exercises, wraps, lotions, salves and meds to deal with experiencing prolonged pain from forearm muscle damage. My expectations were low so I’ve been wonderfully surprised to find that the pain I’ve been experiencing for near a year has gone down greatly in the course of less than a couple of weeks. I’m being careful and am following instructions I was given. No more than thirty seconds at a time, for three times a day max, with a minimum of an hour in between has resulted in something wonderful happening. I don’t understand what it’s doing, but I’m thankful it’s doing it. If all’s good at the end of two weeks, I have a green light to increase from thirty seconds a pop to a whole minute. A minute might not seem long, but I am telling you, that if you haven’t been doing any wrist or arm muscle strengthening, a minute will be a goal that you won’t realize right off the bat. Yes, it takes time to get it going right. It was downright annoying the first couple of days, but like anything, keep trying it gets easier and easier. The spinner came with 2 starter cords and I’ve lost one already when it flew off after a particularly hard pull. Another surprise was realizing that I’m feeling it in my bicep too. When I get up to some real extended time for multiple times a day, I think I’ll be seeing some major toning up all over my arm, not just the wrist and forearm. Need to workout your arms a bit? I highly recommend the NSD Power Essential Spinner as an introduction to toning and a prelim to lifting.

Better than autostart option! Great (and fun) quick forearm workout!

4 people found this helpful.
 on June 1, 2016
By Tony K
Personally, I think this NSD Non-autostart is better than the autostart option. I’ve used both, and this one is rounder and fits more flush in your hand (The autostart option with the digital readout protrudes out a little in my opinion).

Great for grip strength!

3 people found this helpful.
 on October 10, 2013
By Michael E.
I got this because I have a torn extensor tendon (aka tennis elbow) and was losing a lot of grip strength. I’ve been going thru physical therapy which has helped a ton but I needed something to do on my own. I do this at work during lunch and it has become so popular that I have to share it with co-workers who have carpal tunnel. Definitely makes a huge difference in your grip strength and wrist/forearm strength. Takes a bit of time to “get used to it” but once you get the rhythm down it becomes easy. Highly recommend it for anyone with repetitive stress injuries who want to develop strength or for anyone who just wants to develop hand/grip strength overall. I’m to the point now that my forearms burns in a way that I can’t get to happen any other way. The ball literally starts to pull itself out of my hand after a while.

awesome and comfy on your hand

3 people found this helpful.
 on June 5, 2015
By Jen
This thing is awesome. I get a good burn in my forearm from use. Using it more than one minute is painful. Comes with two strings to wind it. Put the string in the center and wrap them around the center ball. There is a hole in the middle to snag the string on and a groove that you wind the string in like a yoyo . Pull on the string with a swift tug and it starts spinning. True to picture and comes packaged nice

good things in small packages

2 people found this helpful.
 on April 16, 2015
By Net mate
Love at first sight Now I just got it so stuff like durability remains to be seen But I tell you it really feels good in my hand It did take me a few minutes to figure it out But once I’ve got it going it was hard to put it down I actually let it rest only after my hands got tired I only bought it to see if it will speed up the healing of the sprain in my wrist And I think it did help somewhat If tomorrow I should feel confident enough to work out I’ll by another gyroscope just in case this one brakes


 on March 3, 2017
By B. Lewis
This things works incredibly well. At least I think it does. The resistance it offers and the way it makes my forearms burn is truly amazing. Palming it and a finger tip grip offer very different workouts too. All that said, I can’t tell if my grip strength has increased or not.

I have both this NSD Power Essential Spinner and the …

 on March 6, 2017
By laiyenha
I have both this NSD Power Essential Spinner and the less expensive Huluwa gyroball. The NSD is more well built and it is so much smoother and quieter than the Huluwa Gyroball. However, the NSD provides much less force than the Huluwa to spin at high speed. I prefer the heavier feeling of Huluwa so I’ll keep it at home (the quiet and non LED NSD is more appropriate at the office).

I absolutely love this thing!

One person found this helpful.
 on September 25, 2016
By Gamer23
I was really excited to give this a try after seeing it on various websites so I decided to order it from here. I read that it was difficult to start, but when I started mine up I got it on the second try. The NSD Spinner is really amazing. When you are using it it feels like there is a force weighing against your arm. It is a great workout. I would recommend this product to anyone.

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