Why is this unit more than twice the price of the "acelete auto-start 2.0 power ball wrist trainer ..." ?

I can attest to that. My NSD powerball lasted four and a half years. With the same amount of use, my Acelete lasted only a month and a half.

noise level ? can I use this at a silent environment like office ?

Yes. Our surgeons use them in their offices while on the phone. It makes very little noise. Sort of a brushing sound.

does it have led light ?

No, all NSD Spinners with ergonomic/rubber band in black are not equipped with LED lights. However, the Speedometer on the top goes with self-powered back LED light when you spin and reach 3,000 RPM.

What is the difference between the nsd power and nsd titan? the price is as twice as big for titan

Their Material and Size are different. PB-688 series Spinner are made of military-grade plastic while PB-888 Titan series are made of zinc rotor and Aluminum Alloy shell. PB-688 is a tennis ball sized Spinner while PB-888 is as big as a softball.

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- NSD Manual Thumb Wind Start Spinner Gyro Ball – Up to 15,000-18,000 RPM Premium & Durable Hand Strengthener and Wrist Exerciser for Grip Strength Training, Forearm Workout, and Pain Relief

Product ID: 1558792

Details

Brand
NSD
Color
Black
Item Weight
0.25 kg
Material
Plastic
Style
Without LCD

💪24.9 lbs torque resistance

⚙️Up to 18,000 RPM gyroscopic spin

🛡️Military-grade durable materials

€ 103.58

Duties & taxes included

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Spin Stronger, Recover Faster, Win Every Grip!

COMPACT POWERHOUSE - Achieve gym-level forearm and grip strength gains in just minutes a day—perfect for busy pros.
PRECISION STOP CONTROL - Instantly halt rotation by reversing the rotor for seamless workout transitions.
RUGGED VIBRATION FREE BUILD - Crafted with military-grade plastic, zinc rotor, and stainless steel axle for rock-solid stability.
EFFORTLESS THUMB WIND AUTO START - Launches powerful gyro spin with a simple thumb wind—no batteries or strings needed.
TARGETED REHAB STRENGTH TRAINING - Ideal for athletes, musicians, and anyone recovering from repetitive strain injuries.

The NSD Manual Thumb Wind Start Spinner Gyro Ball is a premium hand and wrist exerciser that delivers up to 18,000 RPM and 24.9 lbs of torque resistance through gyroscopic force. Built with military-grade materials for durability and smooth performance, it features a unique thumb-wind auto-start and instant stop control. Perfect for grip strength training, forearm workouts, and rehabilitation from repetitive strain injuries, this compact device offers fast, measurable results without batteries or strings.

Specifications

ASIN	B007MEWU14
Best Sellers Rank	#32,575 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Gyroscopic Hand Exercise Balls
Brand Name	NSD
Color	Black
Customer Reviews	4.3 4.3 out of 5 stars (736)
Global Trade Identification Number	00848663000278
Included Components	Plastic shells, Stainless steal axle, Zinc rotor
Item Dimensions L x W	5.12"L x 3.15"W
Item Shape	Sphere
Item Type Name	Wrist Forearm Grip Strengthener
Item Weight	0.25 kg
Manufacturer	NSD Power
Material	Plastic
Model Number	PB-688A Black
Number of Items	1
Number of Packs	1
Part Number	PB-688A Black
Style	Without Digital LCD Counter
Tension Supported	Heavy
UPC	848663000278
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: [email protected]. If you choose to e-mail our Customer Service team, please include the full name of the product; the model or style, if applicable; …

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€ 103.58

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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