Gyro Ball

THE ONLY WRIST TRAINER YOU WILL NEED Train your wrist in a fun way. Gyro Ball exercise is completely equidistant, so it can supplement any training

Features:Exercise with powerball is completely equidistant, so it can complement any training method. Powerball exercises the arms in a way that conventional isotonic (free weight) exercise training cannot achieve, and it can absorb a higher percentage of muscle fibers in a shorter time.

Sipin Anti-stress Wrist Trainer LED Gyroball Essential Spinner Gyroscopic Forearm Exerciser Gyro Ball With 7-color Light

Szczw Auto-start Power Gyro Ball, Metal Ball Center,Self-Luminous Hand Wrist Forearm Trainer And Strengthener For Exercise Joint And Muscle

Give your forearms and biceps an almighty workout! Ball within a ball system creates an immense gyroscopic force. No batteries required and no chemicals utilised inside The faster it spins the brighter it lights up. Just wind up the thread and pull briskly for fun, relaxation and exercise to your hands, wrist and arm. This is the perfect tool to have not only fun with, but to exercise your hands, wrists and complete arm too.