Smartcoco Multifunctional Gyro Power Ball Wrist Arm Exercise Strengthener

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 faster you spin, the harder your muscles exercise. and when you spin the LED lights inside the ball will be flashing.

Feature:
Material:plastic+rubber Weight: 0.3kg (0.66lb)
Size: 10cm x 10cm x 7cm (3.94in x 3.94in x 2.76in)
Color:blue/red/yellow/white
Perfect exercise gadget for sports like golf, tennis, squash, cricketm badminton, baseball, bowling, basketball, motocross, mountain climbing.
Great benefit for musicians, guitarists, pianists, drummers.
Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders.

NOTE:
Blue- blue light,
Red-red&blue light,
Yellow/White-red&green light

Package include:
1x Forceball with LED speed meter
1x Starting rope
1x Hand strap
1x User manual

• Size:10cm x 10cm x 7cm (3.94in x 3.94in x 2.76in)
• Wrist ball doesn't need battery, it is powered by rotating the wrist
• Perfect exercise gadget for sports like golf, tennis, squash, cricketm badminton, baseball, bowling, basketball, motocross, mountain climbing
• Great benefit for musicians, guitarists, pianists, drummers
• Increases strength in fingers, wrists, hands, forearms, biceps, triceps, ligament and shoulders

Size:10cm x 10cm x 7cm (3.94in x 3.94in x 2.76in)Smartcoco