Adjustable Grip Strengtheners: Made of high quality ABS material, featuring high flexibility and durability, strong enough for heavy duty exercise. Ergonomic Grip Design: The powerful gripper is ergonomic and easily use. comfortable grip, good elasticity, and non slip. Product Size: With a compact and portable design, take this grip strength trainer with you and exercise anywhere: at home, workplace, or travel. Adjustable Resistance: It can adjust the strength, 10-100kg (22-220Lbs) strength range. Intelligent design, automatic counting. Hand Training: Great for finger, wrist & forearm training, building up hand strength, increasing grip and the flexibility of fingers. Perfect for wrestlers, athletes, musician, muscle builders, exercise trainers.