NSD Metallic Titan Pro Spinner Gyro Ball – Grip Strengthener for Forearms, Wrist & Hands – Auto Start Design, Up to 15,000 RPM – Mobile Wrist Trainer & Workout Equipment– For Desk Workers & Athletes

["Larger Spinner for Larger Hands - Built to be larger than the normal NSD series Spinner to accommodate larger hands. It's roughly the size of a softball to improve your grip","Built for Power – This forearm exerciser is larger and heavier than plastic models—ideal for big palms and advanced users. The metal shell adds heft for serious grip strength training. Just wind, release, and rotate to activate this hand strengthener","Track Your Power – This auto-start torque ball hand exerciser features a built-in speedometer to monitor your RPMs. Just wind, release, and rotate your wrist to spin past 15,000 RPM and build serious grip strength—no string or battery needed","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 – NSD 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 – Unlike others, this gyro ball spinner is built with a tough, metal body that encapsulates a zinc rotor & stainless steel axle for rock-solid balance. No rattles, no vibrations—just consistent resistance for forearm workout"]