Product name:Grip strength trainer Product size about : 16*13.4cm/6.29*5.27in Product color: As shown in the figure Product material:steel+tpr product features: 1. Adjustable Grip Strengthener: This grip strength strengthener features adjustable resistance levels from 5kg to 165kg, allowing users of all fitness levels to customize workout intensity. Whether you're a beginner or an advanced athlete, this device has the flexibility to challenge and strengthen your hand and arm muscles. 2. Large springs for enhanced resistance: This grip strengthener is equipped with large high-tension springs that provide powerful resistance to effectively target and engage your hand and forearm muscles. Durable springs ensure long-lasting performance and reliable resistance for a consistent and effective workout. 3. Built-in counter for tracking progress: With a built-in counter, this grip strengthener allows you to track and monitor your progress over time. A counter displays the number of repetitions completed, allowing you to set goals, measure improvements, and stay motivated throughout your training session. 4. Steel construction with non-slip grip: This grip strengthener is made of steel for superior durability and longevity. The sturdy construction ensures it can withstand rigorous use without deformation or breakage. In addition, the ergonomic anti-slip grip provides a safe and comfortable grip to prevent slipping during intense workouts. 5. Multifunctional training tool: Suitable for a variety of fitness goals and training routines, this grip strengthener can be used to improve grip strength, increase forearm muscle mass, enhance finger flexibility and rehabilitate hand injuries. Whether you're an athlete, musician, or just want to improve your hand strength, this versatile tool is designed to help you achieve your fitness goals. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Grip strength trainer