Curaball Hand Exerciser，Metal Auto-Start Gyroscopic Wrist Strengthener with LED Lights, Hand Grip Trainer for Forearm & Finger Strength, Durable Torque Ball (1pc)

About this item

• 【Self-powered LCD display】The Curaball hand exerciser does not require batteries, automatically starts up, and displays RPM, applied force, exercise time, and calorie consumption in real time. The clear blue backlight design allows you to easily monitor your training data at any time
• 【High-strength metal structure】Features an aluminium alloy shell and steel rotor for greater stability and durability, with smooth operation and no vibration. It weighs twice as much as plastic models, making it suitable for high-intensity training
• 【Automatic Core System】Features a spring-driven design; simply press the thumb to activate rotation (operate in the direction of the arrow), no need to pull a rope, making operation simple and intuitive, allowing you to start exercising anytime, anywhere
• 【Adjustable Resistance Training】The faster you rotate, the stronger the resistance! Resistance ranges from 0 to 50 pounds, suitable for different fitness stages and goals, from light warm-ups to high-intensity training
• 【Ergonomic Anti-Slip Handles】Silicone-wrapped handles provide a comfortable, anti-slip grip that conforms to the natural rotation of the palm. Even when sweaty, the handles remain secure, ensuring safe and efficient training