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Good for HealthEfficiently rehabilitates wrist pain, humerus fracture, scaphoid fracture, radial head fracture, numbness in fingers, numb hands, fractured wrist, elbow tendonitis, broken bones, olecranon bursitis. Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders.
More Suitable for Sports Training Highly beneficial grip strength trainer for golf, tennis, climbing, cycling, basketball, cricket, martial arts and with improved playing performance for pianists, drummers & guitarists.
Make Exercise & Add FunNovelty design with LED lights, which is fun to see how fast you can get it spinning. Cool LED lights inside will light up while spinning, no battery needed,powered by rotating the wrist. Rehabilitates sore muscles, Kill the time & Add fun !
Control exercise informationCompact & Easy to carryProfessional Digital LCD counter displays various vital workout information. Max. Speed 12,000 R.P.M
Contact usCommunication is the best way to solve problems,and each customer's recognition is our motivation in developing our small company and improving our service .

Description

Features:
* 1.It is a very interesting sensation and definitely makes your forearm sore and gets the blood going.
* 2. Highly recommend to anyone and use it while sitting at your desk.
* 3. So, on your 5 minute break take it out and give it a go. You will be impressed on what this device can do for you. It works on your grip, forearm, and blood flow you will be amazed.
* 4. The faster you spin, the harder your muscles exercise. When you spin the LED lights inside the ball will be flashing. * 5. The Forceball can generate between 1 and 30 pounds of resistance by spinning at almost 10,000 rpms.
* 6. The more exciting part is, this exercise ball lights up when it's spinning! And the LED light is not powered by batteries but your spinnin. It's battery free.
* 7. No need to worry about power running out. It will keep lighting up as long as it's spinning!
Usage
* 1. To start, hold the ball in your hand with the exposed gyroscope facing left, insert the included red string into the hole, wind it up, and pull straight down, fast enough to have the gyroscope turn the LED on.
* 2. Then turn your hand facing down, and slowly start to rotate. The gyroscope will start to "bite" and you will feel like it is scratching against the inside of the wrist ball.
* 3. To keep rotating your wrist and the gyroscope will spin faster and develop a higher pitch sound. Once you have it spinning fast enough, you can stop your hand and feel it oscillating right in your palm.
Package Includes
1x Forceball with LED Speed Meter
1x Starting Cord
1x Hand Strap
1x User Manual
Questions and answers
1;How to start the powerball with the starting cord
Please see this link on Youtube : https://www.youtube.com/watch?v=3Zoztg2qz_o
2;Why the counter on top didn't work?
Please remove the insulating sheet.(White transparent plastic)