Which version has the greatest resistance?

Dear customer, I am writing to you at 22:00 Japan time. Paste your review below; RPMSports Powerball promises high quality that sets it apart from other manufacturers' products, such as smoothness of rotation, quietness, and robustness. It is sold in more than 20 countries around the world and has a wide range of users from professional athletes to children. Not only strength training results, The results of research on the effectiveness of rehabilitation and injuries were announced at a famous university, and it was certified as a medical device in South Korea. It is also proven to be effective in rehabilitation and injury prevention. These achievements are proven because of the high quality of the Powerball made by RPMSports. In recent years, many Powerball imitations have been sold, We hope that you will not be deceived by other products' unreliable sales performance, exaggerated expressions and misleading product descriptions. We often receive feedback that it would have been better if they had purchased a Powerball made by RPMSports from the beginning. We recommend the highest quality Powerball for the best training. We apologize for not meeting your expectations. Thank you for your continued support of Kyoto Clean Service.

What does 280 Hz mean

That it's not 279 Hz. Nor a 281 Hz. I hope this helped.

Does this ball vibrate at 280Hz? Do you feel a sense of vibration or not? I don't understand the relationship between 280Hz and 17,000 rpm

You can feel the ball rotate or vibrating while using it.

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NSD Powerball Autostart Range - Strengthening & Rehabilitation Gyroscopes

NSD Powerball Autostart Range - Strengthening & Rehabilitation Gyroscopes

4.4/5

Product ID: 291314395

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Details

Colour
Smoky black
Material
Plastic
Brand
Powerball
Item weight
263 Grams
Style
Autostart

⏱️Up to 17,000rpm speed

⚙️280Hz Autostart tech

🖥️Optional digital speed meter

Description

⚡ Spin Stronger, Recover Faster — Power in Your Palm!

ELITE SPEED PERFORMANCE - Spin beyond 17,000rpm for peak muscle activation and rehab.
CORDLESS AUTOSTART POWER - No starter cords needed—ignite your workout instantly, anywhere.
COMPACT PORTABLE DESIGN - Sleek 7cm diameter fits in your hand or bag for on-the-go power sessions.
VERSATILE REHAB FITNESS - Perfect for athletes, musicians, and anyone recovering from RSI or arthritis.
INDESTRUCTIBALL DURABILITY - Built to last with frustration-free, long-term use.

The NSD Powerball Autostart Classic is a premium gyroscopic hand exerciser featuring 280Hz autostart technology that eliminates the need for starter cords. Engineered with Indestructiball technology for exceptional durability, it reaches speeds over 17,000rpm to enhance strength, rehabilitation, and dexterity. Compact and portable, it suits athletes, musicians, and anyone managing repetitive strain injuries, with an optional digital speed meter for tracking progress.

Specifications

Color	Smoky black
Style	Autostart Classic
Display Type	LCD
handle-type	Standard
Height	5.8 centimeters
Length	7 centimeters
Weight	260 Grams
Width	7 centimeters
Material Type	Plastic
Number of Items	1
Power Source	Corded Electric
Sport	Tennis
Batteries Included?	No
Brand	Powerball
Manufacturer	RPM Sports
Item model number	280Hz Autostart Classic
Product Dimensions	7 x 7 x 5.5 cm; 263 g
ASIN	B00NIY71DO

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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€ 158.73

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TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago