Usage Tips:Product Description Size: 15x11x2.2cm Color: all black, black red, black gray Material: main body PP plastic and TPR handle plastic wrap and spring steel spring Package content: 2x gripper 1. Improve Your Grip Strength Get yourself a hand grip strengthener that hits all of the major finger, hand, and forearm muscles. Whether you're going through physical therapy, maximizing your gains, managing stress, or training proactively to relieve pain associated with aging, this hand strengthener is your all-in-one solution. Your grip trainer will become your travel companion, desk fidgeter, or couch clutcher in no time. You can take this portable gripper anywhere. 2.Portable And Convenient Your hand exerciser grip strengthener needs to be accessible no matter where you go. A portable forearm grip workout allows you to exercise no matter what life throws your way. The compact design of this forearm exerciser enables you to fit it in your pocket, handbag, or gym bag. Squeeze out a training session at home, at the gym, and even in the car. Physical therapists recommend grip training for just about everyone. 3.High-quality materials We designed this hand exerciser grip strengthener with you in mind. Other hand strengthening equipment is made of low-quality materials that break over time. To ensure you avoid the frustration of broken hand gripper tools, we made this gripper out of high-quality materials that stand the test of stress. Unlike our competitors that break, and don't even fit your hand right, this forearm exerciser is built to impress. 4. Adjustable Resistance Your forearm trainer is adaptable to your strengthThe ergonomic non-slip comfort handles will ensure you never lose your grip. Our hand grips for strength have reinforced stainless steel tension springs and feature high-quality durable plastic bodies. These wrist strengtheners are perfect for musicians, copywriters, weight lifters, and those with arthritis issues. 5.Rehabilitation devices As a rehabilitation device, the hand strength trainer is suitable for treating patients with hand injuries, tendinitis, arthritis, carpal tunnel and tennis elbow. to quickly strengthen targeted muscles without injury