5-100 KG Grip Strength Trainer Fitness Gym Training Hand Gripper Stress Relief Hand Grip Strengthener Hand Gripper for Muscle Building Hand Therapy Recovery for Musicians Athletes Hand Injury Recovery. Feature: 1. Adjustable Resistance from 5-100KG: Easily adjust the resistance level from 5-100KG, making it suitable for people of all fitness levels. 2. Electronic Counter for Clear Workout Tracking: The built-in electronic counter provides a clear and convenient way to track your exercise repetitions. 3. Stainless Steel Construction: Made from high-quality stainless steel, this fitness gym training hand gripper is resistant to wear, rust, and breakage. 4. Sweat-Resistant and Non-Slip Design: The ergonomic design features a sweat-resistant and non-slip curvature that perfectly fits the palm and finger arc. 5. The Gift for Fitness Enthusiasts: This non-slip gripper makes for an ideal gift for anyone who loves fitness and strength training.