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NSD Dynamics Speed X PB-688E – Lightweight Gyroscopic Spinner for Smaller Hands
$74.99$199.99
The NSD Dynamics Speed X (PB-688E) brings the same motorized gyroscopic technology as the full-size PB-788E into a more compact shell — purpose-built for users with smaller hands, or anyone who prefers a lighter, faster-spinning gyroscopic exerciser for daily wrist, grip, and forearm training.
At its core is a precision-calibrated zinc composite rotor housed in a fully enclosed, dust-sealed shell. The zinc rotor's lighter mass allows the PB-688E to reach higher rotational speeds more responsively than heavier solid-metal rotor models, making it an excellent choice for speed-focused training and fast-twitch muscle conditioning. A single press of the built-in self-starting motor brings the rotor up to 3,000 RPM — no cord, no spring winding, no manual start required.
An onboard multi-function digital counter tracks RPM, session duration, and workout intensity in real time, giving you measurable data to build strength and endurance progressively over time.
Small Shell, Full Performance
The PB-688E's 2.96 in (75 mm) diameter shell fits snugly into smaller hands, enabling a more secure grip and more effective transfer of wrist rotation into gyroscopic resistance. A looser grip reduces the efficiency of every rep — proper fit matters as much in gyroscopic training as it does in racket sports or weightlifting.
At 0.63 lb (286 g), the PB-688E is also the lighter and more portable of the two Speed X models, making it easy to carry in a jacket pocket, backpack, or travel bag.
Built for Rehabilitation & Injury Recovery
The PB-688E's self-starting motor is a significant advantage for rehabilitation users. Those recovering from broken fingers, wrist fractures, RSI, or forearm injuries can begin gyroscopic strengthening immediately — without the frustration or physical demand of manual cord-start activation:
- Wrist fracture recovery — low-speed gyroscopic resistance gently loads the wrist joint and surrounding tendons, promoting circulation and collagen delivery to healing tissue without impact stress
- RSI and repetitive strain — progressive resistance at controlled speeds helps rebuild tendon resilience and reduce chronic inflammation associated with desk work, gaming, or instrument practice
- Finger injury rehabilitation — electric start eliminates the grip and pinch force required for manual starting, making early-stage rehabilitation accessible even with reduced finger strength
- Circulation and warm-up — spinning at moderate speeds increases blood flow from fingertips to shoulder, delivering oxygen and nutrients to muscles and connective tissue — ideal as a pre-activity warm-up or post-session recovery tool
Who Is the PB-688E Built For?
- Smaller-hand users — the 2.96 in shell provides the secure, full-contact grip needed for effective gyroscopic resistance
- Musicians and pianists — lightweight and responsive, ideal for finger tendon conditioning and RSI prevention without overloading the hand
- Gamers — builds the wrist endurance and fine motor control needed for sustained high-performance gaming sessions, while supporting recovery from mouse-related strain
- Older users — electric start and lighter weight make the PB-688E accessible to users who find larger or manual-start gyroscopic exercisers difficult to operate
- Rehab and recovery users — gentle, progressive resistance supports recovery from a wide range of wrist, forearm, and finger injuries
Which Speed X Size Is Right for You?
| Model | Diameter | Weight | Rotor Material | Recommended For |
|---|---|---|---|---|
| PB-788E | 3.15 in (80 mm) | 1.0 lb (454 g) | Machined metal | Standard to large hands |
| PB-688E | 2.96 in (75 mm) | 0.63 lb (286 g) | Zinc composite | Smaller hands, rehab, speed training |
Looking for a larger fit? See the NSD Dynamics Speed X PB-788E for standard to large hand users.
Key Specifications
- Shell diameter: 2.96 in (75 mm)
- Weight: 0.63 lb (286 g)
- Rotor material: Zinc composite — lightweight, fast-spinning, ultra-responsive
- Start mechanism: Built-in electric motor, hands-free start up to 3,000 RPM
- Torque output: 28 lb-in at 10,000 RPM
- Tracking: Multi-function digital counter — speed (RPM), duration, intensity
- Mechanism: Fully enclosed, sealed gyroscopic rotor — dust-resistant, near-zero maintenance
- Form factor: Compact and portable — fits in a jacket pocket or gym bag
- Best for: Smaller hands, rehabilitation, musicians, gamers, older users, and speed-focused gyroscopic training
NSD® Spinner products are fully warranted to the original purchaser against defects in material and workmanship for the lifetime of the product. If a product fails due to a manufacturing defect, even after extended use, we will repair or replace the product without charge, at our discretion. This warranty does not cover damage(s) caused by accident, improper use, negligence, normal wear and tear, or acts of vandalism. This warranty also does not cover unauthorized attempt at disassembly of the Spinner product, nor does it cover any similar products sold by other distributors of NanoSecond Technology. Damages not covered under warranty will be repaired for a reasonable rate.
A Return Merchandize Authorization, or RMA, number must be obtained from NSD Power Customer Service at 626-462-9328, and a copy of the original sales receipt must accompany the returned merchandize for warranty evaluation. NSD Power US will not accept warranty returns without a copy of the original sales receipt. For warranty evaluation, your Spinner must be returned directly to NSD Power US Warranty Claims, 2472 Beacon St. Fullerton CA 92835. All shipping for Warranty claims must be pre-paid and insured. NSD Power US can not be liable for lost in-bound packages.
Please allow up to 5-10 business days for warranty claim to be processed once it’s received by NSD Power US.
