--- product_id: 1347216 title: "PB-688 Blue" brand: "nsd" price: "SAR 152" currency: SAR in_stock: true reviews_count: 13 category: "Nsd" url: https://www.desertcart.com.sa/products/1347216-pb-688-blue store_origin: SA region: Saudi Arabia --- # 26.8 lbs gyroscopic resistance 15,000 RPM max spin speed Military-grade durable materials PB-688 Blue **Brand:** nsd **Price:** SAR 152 **Availability:** ✅ In Stock ## Summary > 💥 Spin up your strength, anywhere, anytime! ## Quick Answers - **What is this?** PB-688 Blue by nsd - **How much does it cost?** SAR 152 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/products/1347216-pb-688-blue) ## Best For - nsd enthusiasts ## Why This Product - Trusted nsd brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Military-grade plastic shell with zinc rotor and stainless steel axle ensures unmatched durability. - • **Precision Control:** Adjust resistance naturally by your effort level—quiet enough to use during work or TV time. - • **Pure Torque Power-Up:** No batteries needed—just pull the string and unleash instant high-speed resistance. - • **Total Arm Activation:** Targets wrists, forearms, and hands for a full-spectrum strength and endurance boost. - • **Compact Strength Machine:** Fits in your palm for on-the-go wrist, hand, and forearm workouts anywhere, anytime. ## Overview The PB-688 Blue NSD Spinner is a premium gyroscopic hand exerciser that spins up to 15,000 RPM, generating over 26.8 lbs of resistance to deliver a powerful forearm, wrist, and hand workout. Engineered with military-grade materials and a modular design, it offers durability and easy maintenance. Battery-free and compact, it’s perfect for professionals seeking a portable, effective way to build grip strength, relieve wrist fatigue, and enhance dexterity on the go. ## Description Innovative Exerciser that Lets You Exercise Anywhere Break a sweat anytime, anywhere with the impressive NSD Power Essential Spinner. This hand-held wonder spins at up to 15,000-plus RPM and uses angular momentum to give your arms, hands, wrists and forearms a sweat-inducing workout. Just a few minutes a day with the NSD Spinner can be equivalent to hours of full-motion work with a dumbbell or curl. It provides excellent strength-building benefits to athletes looking to hone their arm and wrist strength. Plus, it’s really fun to operate! The compact, break-resistant design means you can toss it in your bag for strengthening on the go. This hand-held exerciser is easy to operate via an include pull-string. Some models are equipped with an auto-start pre-tensioner plus speed variable multi-colored LED lights for a mesmerizing display. Choose your perfect option, including the ergonomic PB-688 Amber NSD Spinner all the way up to the high-tech and full-featured PB-688AML Spinner with added LED lights powered by an inner generator and other great features. All NSD Spinners are made of Latex-free materials. Make sure to shop only verified, genuine NSD Products to ensure that yours is built with the best quality materials and works with no defects. Review: Nice quality feel, smooth, heavy, quiet - I had an old Dynabee back in the late 1970s - this one is a bit heavier, feels much more precise and solid, and works really well. The little string pull starters are great if you can't get it started easily by itself - I have a pretty good success rate spinning it up by hand then teasing it up to speed gently. I find that it is quiet enough to watch TV while using it. You can control the resistance by how much effort you put in, and when you get going hard, the resistance is strong enough to get a good hand/forearm workout very quickly. From reading other's comments, I see there are a few different grips/positions that I have not tried, so I look forward to those. I also found, to my slight surprise, that one hand requires a lot more focus and attention than the other, and I can't really sustain it well with that hand, so that is another good goal to work on! Review: Great hand work out - These are great hand exercisers. The work out the hand, fingers and wrist. They are actually fun to use. I went with the string pull version (drastically cheaper) to see if I would like it or even use it. The string pull is straight forward and gets the unit spinning well enough. ## Features - Pull to Power Up – No batteries, just pure torque. Simply pull the string to start! This torque ball hand exerciser hits up to 15,000 RPM, generating over 26.8 lbs of gyroscopic resistance—perfect as a compact, high-intensity forearm strength trainer. - Total Arm Workout – NSD Spinner gyro ball is a fitness equipment that targets forearms, wrists, and hands, providing a full arm workout. Relieve pain and soreness with every spin, improving forearm strength, wrist strength, and overall grip strength. - Who It’s For – Whether you're a desk worker battling wrist fatigue, a dedicated athlete building arm strength, or a musician fine-tuning finger dexterity, NSD Spinner is the best hand & forearm strengthing workout equipment for improving hand endurance. - Engineered for Excellence – Unlike others, it's built with a military-grade plastic shell, zinc rotor, & stainless steel axle and offers unmatched durability. Its modular design allows easy cleaning & replaceable inner tracks may prolong its lifespan. - Precision Training On the Go – This compact forearm exerciser and hand strengthener fits in your palm and operates without batteries. Use for finger strengthening, wrist workout, and consistent arm strength training anywhere. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B007GGCLK8 | | Best Sellers Rank | #27,774 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #17 in Strength Training Wrist & Forearm Strengtheners | | Brand | NSD | | Brand Name | NSD | | Color | Blue | | Customer Reviews | 4.2 out of 5 stars 2,075 Reviews | | Global Trade Identification Number | 00848663000001 | | Included Components | Plastic shells, Stainless Steal Axle, Zinc Rotor | | Item Dimensions L x W | 5.5"L x 0.03"W | | Item Shape | Round | | Item Type Name | Hand Grip Strengthener Wrist Forearm Exerciser | | Item Weight | 0.25 Kilograms | | Manufacturer | NSD Power | | Material | Plastic | | Model Number | PB-688 Blue | | Part Number | PB-688 | | Style | Wrap | | Tension Level | Medium | | Tension Supported | Medium | | UPC | 848663000001 796793704361 | | Warranty Description | If you'd like a copy of the manufacturer's warranty for a product found on Amazon.com, you can contact the manufacturer directly or visit their website for more information, or you can contact our Customer Service team by e-mailing us at: warrantyquestions@amazon.com. If you choose to e-mail our Customer Service team, please include the full name of the product; the model or style, if applicable; … | ## Product Details - **Brand:** NSD - **Color:** Blue - **Item Weight:** 0.25 Kilograms - **Material:** Plastic - **Style:** Wrap ## Images ![PB-688 Blue - Image 1](https://m.media-amazon.com/images/I/71g3L8mho8L.jpg) ![PB-688 Blue - Image 2](https://m.media-amazon.com/images/I/619zCWxbUXL.jpg) ![PB-688 Blue - Image 3](https://m.media-amazon.com/images/I/815ABYBSiDL.jpg) ![PB-688 Blue - Image 4](https://m.media-amazon.com/images/I/81Q3SHZeY5L.jpg) ![PB-688 Blue - Image 5](https://m.media-amazon.com/images/I/71mzGTlSUNL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can you take this one apart to clean it?** A: Yes, you can take the upper and lower shells apart to clean it. Also, you may reverse the two inner tracks to make the Spinner as good as new. **Q: Do you have to use the string, or can you roll it on the desk to get it moving?** A: Experienced users may catch the momentum right away and speed it up while the rotor's RPM is slow. Some users make the rotor spin by finger flip or rolling it on their jeans. The string is not required. Just needs a lot of practice for the beginners. **Q: I just got mine and it has no instructions, I have no idea how to make it spin!! Help pls!!** A: You quickly pull the red cord that is wrapped around the ball to start the spinning (like a top). It is up to you and your coordination to keep it spinning. **Q: If the string is lost, can it be started manually?** A: You may be able to find a piece of string at your local craft store or in the knitting section of your local Walmart. Make sure the line or string that you use is small enough to fit the whole and thin enough to wrap around the ball inside of its casing with out it, the string, getting jammed. I hope this helped  ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice quality feel, smooth, heavy, quiet *by S***E on June 29, 2025* I had an old Dynabee back in the late 1970s - this one is a bit heavier, feels much more precise and solid, and works really well. The little string pull starters are great if you can't get it started easily by itself - I have a pretty good success rate spinning it up by hand then teasing it up to speed gently. I find that it is quiet enough to watch TV while using it. You can control the resistance by how much effort you put in, and when you get going hard, the resistance is strong enough to get a good hand/forearm workout very quickly. From reading other's comments, I see there are a few different grips/positions that I have not tried, so I look forward to those. I also found, to my slight surprise, that one hand requires a lot more focus and attention than the other, and I can't really sustain it well with that hand, so that is another good goal to work on! ### ⭐⭐⭐⭐⭐ Great hand work out *by E***. on September 29, 2025* These are great hand exercisers. The work out the hand, fingers and wrist. They are actually fun to use. I went with the string pull version (drastically cheaper) to see if I would like it or even use it. The string pull is straight forward and gets the unit spinning well enough. ### ⭐⭐⭐⭐ Strengthens Wrists but Can't Do It for too long without becoming achy *by D***C on December 24, 2014* So I've been playing violin and piano for awhile along with using a computer a lot and I developed a bad case of tendonitis. I wear wrist braces on both arms during the night to help prevent my wrists from bending. I've had this condition for a couple months and had to stop playing piano and in orchestra for a couple months. I decided that I can't wait any longer for this to heal because I was upset that I couldn't do anything without severe wrist pain that lasted for hours. Several of my family members told me that I should exercise it and some people told me about those balls that you squeeze in your hands. So I tried the exercises which didn't really work and I didn't want to spend money on squeezing a ball that may or may not work. So I found this and decided to give it a try. I was skeptical about buying it because of the lack of costumer reviews.I decided to give it a shot because i heard it was good for rsi(repetitive stress injuries). So when I first got it I found it very hard to get it started. You have to put the string on similar to yo-yo and pull HARD while spinning your wrist in a motion similar to opening a door knob. After 30 seconds of this my wrists were tired and sour. They were sour for the first two weeks after using this once a day and one minute on each hand. Then on the third week I discovered that I could actually do it for a full minute. I noticed that when I went back to play violin that my wrists didn't hurt as much after playing as they used to. My hands also felt more relaxed and I discovered that I had less wrist pain and I could do more activities for longer without any pain. So I am going on my fourth week after using it for one minute on each hand once a day. I notice that I'm having more trouble than before doing it for a full minute because I guess that it's wearing out from constant use and it takes more force to spin. My wrists are also starting to ache again and fell very tired. So I am going to try to do it every other day instead. I will post an update on how my wrists are in a week or two from constant use. ## Frequently Bought Together - NSD Power Essential Spinner Gyro Hand Grip Strengthener Wrist Forearm Exerciser - Hand Grip Strengthener, Finger Exerciser, Grip Strength Trainer (6 PCS),New Material,Forearm Grip Workout, Finger Stretcher, Relieve Wrist Pain, Carpal Tunnel, Trigger Finger, Mallet Finger and More. - THERABAND FlexBar, Tennis Elbow Therapy Bar, Relieve Tendonitis Pain & Improve Grip Strength, Resistance Bar for Golfers Elbow & Tendinitis, Green, Medium, Intermediate --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.sa/products/1347216-pb-688-blue](https://www.desertcart.com.sa/products/1347216-pb-688-blue) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-05-24*