NSD Power Essential Spinner Gyroscopic Wrist and Forearm Exerciser

Amazon Price: N/A $20.00 (as of February 20, 2018 5:55 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

Love it.

One person found this helpful.
 on March 13, 2017
By lightnup
I love using this exerciser. It’s a lot of fun and if you spin it as fast as you can it will work your forearm and wrist out well. The only change I would make would to buy one that has the auto start feature so you don’t have to have the string. You can start this one without the string but it’s pretty hard to do sometimes.


 on August 18, 2017
By Pau1A11en
I have used the other major brand who’s name escapes atm, its 3 letters or something, and was glad I went with the unknown this time. this one is easier to keep spinning at lower speeds so u can go longer. I find at full force either arm won’t go two min even. I like the lack of lights so I can use it whilst driving at night.

Only problem bought used one one they failed to know or understand & disclose it is suppose to come with a starter string

 on January 20, 2018
By MX3
Only problem bought used one one they failed to know or understand & disclose it is suppose to come with a starter string with hard end to put in hole in slot in ball. Otherwise past initial step learning curve on getting it started it is great. See youtube vids on how to start it to get the hang of it.

Good but some disconnect with what’s advertised

 on August 31, 2016
By Tomodachi
I really like this device however I do have some minor complaints. I was under the impression that this had a digital meter. It was in the add and is in the instructions but there is no meter to be found. It’s not necessary but it would be nice. The thing that does bother me is that in the video I watched about this there was an option to wind it up manually not using the rip cord. That would be handy. I have a cat and I know that she’ll run off with these strings sooner or later. What then? I can’t use the device. That’s a serious problem.

Ideal for Rock Climbers.

2 people found this helpful.
 on April 23, 2017
By Lauren Stanberry
I love this little gadget. I can spin this while I’m bored at work or if I’m watching something on Netflix. It definitely gives my arms a good burn. I would recommend this to all the rock climbers out there who want a little forearm exercise. I think it also helps strengthen wrists too.


 on December 5, 2017
By Sir
After being on the fence for over a year I ordered it. Surprisingly this thing works. I’m actually experiencing OMS in my forearms and wrists. Deep inside the muscles and I feel as if the tendons are getting more taut. This is a very good soreness. Grip feels firmer too. This will work on the mat AND on the range. Relieved some of the thumb joint soreness too. This is one of those “I should have bought this sooner” items.

Spins smoothly

 on April 19, 2017
By Another Shopper
The one I received is completely vibration-free at low, medium, and high RPMs. While I don’t think it’s going to replace all of your arm weights, it’s definitely a good workout for the hands and forearms.

Good forearm workout.

 on September 2, 2017
By Michael
What a great workout. They’re right, a minute gives a great little workout. I just got it, so I can only judge it off the first few uses. The pull string does suck though. The auto-start version is probably worth it..

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