Torque Ball with Counter - Self-Starting Wrist Strength Gyro Ball, Grip Strength Trainer with Auto-Start LED Lights

Torque-Ball hand exerciser with upgraded built-in pre-tension, eliminating the need for a starting cord for easier use. Then rotate your wrist to make the core spin at high speed, generating strong centrifugal force and progressive resistance to train fingers, wrists, and forearms.\nLCD counter with real-time progress tracking allows you to clearly monitor each workout. The self-powered digital display shows RPM, power, time, and estimated energy consumption without batteries, so you can accurately evaluate your grip strength, endurance, and improvement over time.\nThe lightweight, compact wrist strength gyro hand exerciser can be used in short 5-minute sessions without complicated buttons or settings, making it perfect for home, office, travel, or pre-sport warm-ups.\nPortable and stress-relieving, the wrist gyro ball includes a practical storage box and lanyard for secure transport and quick access. Its compact profile easily fits in your pocket, gym bag, or desk drawer, allowing you to relieve stress, stay active during breaks, and perform quick, low-intensity wrist exercises anytime without bulky equipment.\nColor: Black\nMaterial: plastic\nPackage contents:\n1*Torque Ball with counter\nOnly the above package content, other products are not included.\nNote: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.