Auto-Start Spinner Gyro Ball – Up to 15,000 RPM Premium hand strengthener and wrist exerciser for grip strength training, forearm workout, and pain relief; durable and portable - Model PB688

Light Up Your Workout – This gyro ball glows with built-in LEDs that activate as you spin. Auto-start tech means no strings—just a thumb push to ignite 15,000 RPM and 24.9 lbs of gyroscopic force. A glowing grip strength trainer for fun and fitness.

Auto-Start Power – Wind the rotor, release, and rotate your wrist. This torqueball hand excerciser uses just thumb push to launch over 15,000 RPM and 24.9 lbs resistance. No batteries or strings—just gyroscopic force for beginner-friendly grip strength

Grip Gains, No Strain – Spinner is a beginner-friendly wrist strength trainer. Whether at home, office, or on the go, this lightweight & portable forearm exerciser offers an effective, low-impact workout to strengthen hands & forearms without fatigue

Stop Control – The AutoStart feature allows you to stop instantly by just reversing the rotor which ensures smooth transitions between sets, making it a top choice for arm strength trainers & forearm exercisers looking for full control during workout

Smooth, Stable Performance – This durable gyro ball spinner is built with military-grade plastic, Zinc Rotor & stainless steel axle for rock-solid balance. No rattles, no vibrations—just consistent resistance for forearm workout