Features: Practice finger strength: Hand Grip Strengthener which isolates each finger to strength individually. When you need to use fingers that are not commonly used in daily life you can use them to strengthen your fingers. Practice pressing pressure: Whether you are an athlete musician office worker or grip training device you can use it to strengthen your hand anytime anywhere. Treatment and Prevention of Injuries: This strengthening device made of metal is effective for rehabilitation and strengthening. Start with pliers at low resistance and work gradually through the training level as you become stronger and recover. Ideal for preventing RSI such as carpal tunnel syndrome tendonitis etc. Wide Application: Suitable for strengthening hand strength and rehabilitation of hand exercises whether you are an athlete or fitness enthusiast who has strict requirements on the handle our hand training device will be your good choice. If your hand suffers from muscle fatigue or joint pain the hand grip trainer can help you effectively muscle fatigue to relieve and fix hand injuries. Customer Service: With customer satisfaction as our first priority we offer a satisfaction service for all of our merchandise. Specification: Material: Spring steels + Sponge Size: 2.5*8CM Color: Random Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. includes: 5*Sponge Grip Gym Fitness Grip "