• High-quality grip trainers: Made with high-quality aluminum alloy handles, laminated and coated to provide a firm and non-slip grip. Equipped with robust steel springs to ensure prolonged arm and finger training. • Adaptable to your training needs: This trainer offers three different intensity levels (50 - 150 pounds), allowing you to start easily and gradually increase resistance. • Ideal for treatment and prevention: Perfect for rehabilitation and muscle strengthening. Start with low resistance and gradually increase strength in arms and wrists, perfecting and training your muscles to achieve an optimal grip. Helps strengthen fragile muscles and bones and prevent injuries. • Easy to use: Simply press the handles together for a few seconds and release. Ideal for fighters, athletes, musicians, muscle and sports trainers, both beginners and professionals. • Includes: 1 adjustable hand drive (50 - 150 LB) • Product measurements: Weight - 0.2 kg