Launch the challenge: If you can get the wrist ball to 12,000 rpm, the challenge is successful! You will receive a $50 reward from us after you send the video to our email for review!（Email：[email protected]）

Condition your wrist and improve grip, forearm, and even finger strength!

Effortlessly tone & strengthen your upper extremities with the Wrist Trainer Power Spin Ball!

Develop Upper Body Tone & Strength
An incredibly fun and addictive gadget! It is ideal for any sport that requires powerful arms and grip strength such as boxing, martial arts, climbing, tennis, golf and more

Whether playing drums, piano, saxophone or guitar, musicians need to maintain strength, coordination and dexterity in their fingers and hands. Powerball helps to improve agility, speed, accuracy and endurance-if you can make music, Powerball will help you play better.

This not only train the wrist but also the forearm and upper arm, fingers and shoulders! Use it to exercise the muscles beforehand, and as rehab training afterward!

How & When To Use
The second generation of new products, no rope.you only need to push the core in the direction of the arrow, start by the internal spring, very easy and convenient.

It can reach speeds of around 12,000 rpm, and you'll have to handle some real forces when you start to get near those levels!

It can generate up to 32kg of inertial resistance for powerful upper arm muscles and a strong, solid grip!

Use this at high speeds for just 3-5 minutes each day for an intense upper body workout and dramatically improved strength in your fingers, hands, wrists, arms and shoulders!

Fun & Functional Design
It's baseball-sized, handheld & compact. Its inner rotating gyroscope & outer shell are made of premium-grade ABS PLUS an aluminum rotor axle ensuring an ultra-smooth & whisper-quiet spin performance with absolutely zero vibration! It also features self-powered LED lights for that extra pizzaz!

This is the perfect desk exerciser for regular strengthening workouts & for boosting blood flow during periods of inactivity!

Get one of the most powerful forearms, grip & wrist strengthening devices ever built NOW!

PRODUCT SPECIFICATION

OUR GUARANTEE

We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee.

If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.

Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right.

We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance.

Remember: Shipping usually takes 2-3 weeks - read our Shipping for more details!