Theraband Flexible Hand Bar ExerciserThis is a collection of lightweight, portable exercisers, which can be used to strengthen muscles in the hand, wrist and shoulder. Using a device such as this can help build muscle and increase the strength of users, which can have a positive impact on both mental and physical health. When the exerciser is used, the user can experience improved co ordination and an increased range of motion. Coming with the exerciser is an instruction manual,