Type-3 Gyroscope Wrist Strengthener Power Force
6COLORS Without LED !#!amp!*! Counter
This bid is one wrist ball (which is no LED and no Counter)
Package include:
1x Forceball
1x Starting rope
1x Hand strap
1x User manual
Dynami: There is no any battery or electricity inside the device， it is powered by rotating the wrist， and the speed of rotation can reach over 12.000R.P.M
