YANGHX Wrist Trainer Arm Exercise Force Ball with LED Lighting & Speed Meter

YANGHX Wrist Trainer Arm Exercise Force Ball with LED Lighting & Speed Meter

• All you need do is to increase the speed by making a rotational wrist movement and to keep in sync with the spinning of the ball.The faster you spin the harder your muscles work.
• Light up when the ball is in motion.Small, compact and transportable, you can take anywhere.
• It is powered by rotating the wrist and the speed can reach up to 12.000RPM.Counter function allows you to check your rotating speed.
• Strengthen fingers, wrists, hands, forearms, shoulders and bicep etc., and also be beneficial in promoting co-ordination and blood circulation.
• Simple to start with a pull-string.Rehabilitates sore muscles and joint, great for musicians, guitarists, pianists, drummers.

<b>Description: </b> <br>Wrist ball doesn 't need battery, it is powered by rotating the wrist, all you need do is to increase the speed by making a rotational wrist movement and the speed of rotation can reach up to 12,000 R.P.M. The Forceball can generate between 1 and 30 pounds of resistance by spinning at almost 12,000 rpms. <br>The faster you spin, the harder your muscles exercise. and when you spin the LED lights inside the ball will be flashing.<br> <br><b>Package include:</b> <br>1x Forceball with LED speed meter <br>1x Starting rope <br>1x Hand strap <br>1x User manual