Essential Spinner Gyro Ball

• Pull to Power Up – No batteries, just pure torque. Simply pull the string to start! This torque ball hand exerciser hits up to 15,000 RPM, generating over 26.8 lbs of gyroscopic resistance perfect as a compact, high intensity forearm strength trainer.
• Total Arm Workout : NSD Spinner gyro ball is a fitness equipment that targets forearms, wrists, and hands, providing a full arm workout. Relieve pain and soreness with every spin, improving forearm strength, wrist strength, and overall grip strength.
• Who It’s For : Whether you’re a desk worker battling wrist fatigue, a dedicated athlete building arm strength, or a musician fine tuning finger dexterity, NSD Spinner is the best hand & forearm strengthing workout equipment for improving hand endurance.
• Engineered for Excellence : Unlike others, it’s built with a military-grade plastic shell, zinc rotor, & stainless steel axle and offers unmatched durability. Its modular design allows easy cleaning a dependable hand exerciser and fitness equipment.