Whole-body training, strengthening muscles, burning fat

The most effective fitness don't need you to spend too much time, just nine minutes a day can fully stimulate your hands, arms, shoulders, and abdominal core muscles, keep training every day, can exercise cardiopulmonary function and enhance upper limb coordination, increase stamina, burn excess fat, tighten the arm, have the effect of improved form.

Directions for use:
Step 1: hold the middle handle with one hand/two hands horizontally or vertically;
Step 2: turn the force ring clockwise/counterclockwise to drive the round steel ball to rotate in the infinite tube;
Step 3: combine the body strength and training parts, turn faster and faster to feel the size of the natural centrifugal force for targeted training;