Multi-Functional Hand Grip TrainerALL AROUND EQUIPMENT: Arm, shoulder, upper arm, breast, upper body are simultaneously trained. SIMPLE TO OPERATE: Just turn the handle inwards with your favorite posture. USE ANYWHERE: It can be trained in limited space and time at home, very convenient. Usage is very easy. It has a selectable handlebar load. COMPACT: Easy to store, lightweight portable, it does not take space.